Index: admin_templates/js/catalog.js
===================================================================
--- admin_templates/js/catalog.js	(revision 13106)
+++ admin_templates/js/catalog.js	(working copy)
@@ -115,10 +115,10 @@
 	else if ($params[0].length) {
 		document.getElementById($params[0]).innerHTML = $text;
 	}
-	
+
 	// pass catalog object and loaded tab name to event handler
 	$('body').trigger('CatalogTabLoad', [$object, $params[0].replace(/_div$/, '')]);
-	
+
 	if (typeof($object.OnResponceMethod) == 'function') {
 		 $object.OnResponceMethod($object);
 		 $object.OnResponceMethod = null;
Index: admin_templates/js/toolbar.js
===================================================================
--- admin_templates/js/toolbar.js	(revision 13106)
+++ admin_templates/js/toolbar.js	(working copy)
@@ -42,9 +42,10 @@
 	if (this.Title.match(/([^:]+):(.*)$/)) {
 		// has module set directly
 		this.Title = RegExp.$2;
-		this.Module = RegExp.$1;
+		this.Module = RegExp.$1.toLowerCase();
+
 		if (this.Module == 'in-portal') {
-			this.Module = 'kernel';
+			this.Module = 'core';
 		}
 	}
 	else {
@@ -58,7 +59,14 @@
 	if (typeof(img_path) == 'undefined') {
 		//alert('error: toolbar image path not set');
 	}
-	return img_path.replace('#MODULE#', this.Module) + 'toolbar/';
+
+	var $module_path = this.Module;
+
+	if (this.Module != 'core') {
+		$module_path = 'modules/' + $module_path;
+	}
+
+	return img_path.replace('#MODULE#', $module_path) + 'toolbar/';
 }
 
 ToolBarButton.prototype.GetHTML = function() {
@@ -93,18 +101,6 @@
 	this.SetOnClick();
 	this.SetOnRightClick()
 	if (this.Hidden) this.Hide();
-
-	if (!img.complete) {
-		var real_path = img_path.replace('#MODULE#', this.Module) + 'toolbar/';
-		var old_path = img_path.replace('#MODULE#', 'kernel') + 'toolbar/'+this.ToolBar.IconPrefix + this.Title+'.gif';
-		real_path = real_path.replace('http://kostja.prod.intechnic.lv/in-portal.RC', '.');
-		old_path = old_path.replace('http://kostja.prod.intechnic.lv/in-portal.RC', '.');
-		var source = old_path.replace('/core/', '/kernel/').replace('.gif', '*.gif');
-		var path = 'cp '+source+' '+real_path;
-//		prompt('exec: ', path)
-//		img.src = 'img/bad_button.GIF';
-	}
-//	preg_print_pre(img, /natural|compl/i)
 }
 
 ToolBarButton.prototype.EditTitle = function() {
Index: install.php
===================================================================
--- install.php	(revision 13106)
+++ install.php	(working copy)
@@ -1166,10 +1166,6 @@
 				while ( ($sub_folder = readdir($fh)) ) {
 					$folder_path = MODULES_PATH . '/'.$sub_folder;
 					if ($sub_folder != '.' && $sub_folder != '..' && is_dir($folder_path)) {
-						if ($sub_folder == 'core') {
-							// skip modules here
-							continue;
-						}
 						// this is folder in MODULES_PATH directory
 						if (file_exists($folder_path.'/install.php') && file_exists($folder_path.'/install/install_schema.sql')) {
 							$install_order = trim( file_get_contents($folder_path . '/install/install_order.txt') );
Index: install/install_toolkit.php
===================================================================
--- install/install_toolkit.php	(revision 13106)
+++ install/install_toolkit.php	(working copy)
@@ -239,14 +239,14 @@
 			$upgrades_file = sprintf(UPGRADES_FILE, mb_strtolower($module_name).'/', 'sql');
 			if (!file_exists($upgrades_file)) {
 				// no upgrade file
-				return '4.0.1';
+				return '5.0.0';
 			}
 
 			$sqls = file_get_contents($upgrades_file);
 			$versions_found = preg_match_all('/'.VERSION_MARK.'/s', $sqls, $regs);
 			if (!$versions_found) {
 				// upgrades file doesn't contain version definitions
-				return '4.0.1';
+				return '5.0.0';
 			}
 
 			return end($regs[1]);
Index: kernel/nparser/template_cache.php
===================================================================
--- kernel/nparser/template_cache.php	(revision 13106)
+++ kernel/nparser/template_cache.php	(working copy)
@@ -68,7 +68,7 @@
 			$module_paths = Array ();
 
 			foreach ($this->Application->ModuleInfo as $module_name => $module_info) {
-				$module_paths[$module_name] = rtrim($module_info['Path'], '/');
+				$module_paths[ mb_strtolower($module_name) ] = rtrim($module_info['Path'], '/');
 			}
 
 			$this->_modulePaths = $module_paths;
@@ -84,6 +84,7 @@
 	function GetTemplatePaths($filename)
 	{
 		if ($this->Application->isAdmin && array_key_exists($filename, $this->Application->ReplacementTemplates)) {
+			// process admin template replacement
 			$filename = $this->Application->ReplacementTemplates[$filename];
 		}
 
@@ -91,8 +92,8 @@
 		$filename = preg_replace('/^original:(.*)/', '\\1', $filename);
 
 		if (preg_match('#^[\/]{0,1}([^\/]*)\/(.*)#', $filename, $regs)) {
-			$module_filename = $regs[2];
 			$first_dir = $regs[1];
+			$module_filename = $regs[2];
 		}
 		else {
 			$first_dir = '';
@@ -104,31 +105,18 @@
 			$first_dir = 'theme:' . $this->forceThemeName . ($first_dir ? '/' . $first_dir : '');
 		}
 
-		// !preg_match for backward compatability with full-path plugins
-		if ($this->Application->isAdmin && ($first_dir == 'plugins') && !preg_match('/admin_templates/', $module_filename)) {
-			if (preg_match('#^[\/]{0,1}([^\/]*)\/(.*)#', $module_filename, $regs)) {;
-				$path = MODULES_PATH.'/'.mb_strtolower($first_dir).'/'.$regs[1].'/admin_templates';
-				$module_filename = $regs[2];
-			}
-			else {
-				$first_dir = '';
-				$module_filename = $filename;
-			}
+		if ($this->Application->isAdmin && array_key_exists($first_dir, $this->_modulePaths)) {
+			// template belongs to one of the modules
+			$path = FULL_PATH . '/' . $this->_modulePaths[$first_dir] . '/admin_templates';
 		}
-		elseif ($this->Application->isAdmin && in_array($first_dir, $this->_modulePaths)) {
-			// $this->Application->findModule('Name', $first_dir)
-			/*if ($first_dir == 'in-portal') {
-				$first_dir = 'kernel';
-			}*/
-			$path = MODULES_PATH.'/'.mb_strtolower($first_dir).'/admin_templates';
-		}
 		elseif ($this->forceThemeName && preg_match('/^theme:(.*)/', $first_dir, $regs)) {
 			// ability to use Front-End templates in admin (only during mass compilation)
 			$path = FULL_PATH . '/themes/' . $regs[1];
 		}
 		else {
+			// template from "core" module
 			$path = $this->BasePath;
-			$module_filename = $first_dir.'/'.$module_filename;
+			$module_filename = $first_dir . '/' . $module_filename;
 		}
 
 		return Array ($path, $module_filename);
Index: kernel/processors/main_processor.php
===================================================================
--- kernel/processors/main_processor.php	(revision 13106)
+++ kernel/processors/main_processor.php	(working copy)
@@ -39,16 +39,23 @@
 		$cache_key = crc32( serialize($params) );
 
 		if (!array_key_exists($cache_key, $cached)) {
-			$force_admin = array_key_exists('force_admin', $params) && $params['force_admin'];
 			$module = array_key_exists('module', $params) ? $params['module'] : 'core';
 
-			if ($this->Application->isAdmin || $force_admin) {
+			if ($this->Application->isAdmin) {
 				if ($module == 'in-portal') {
 					$module = 'kernel';
 				}
 
-				$path = $force_admin ? '/core/admin_templates' : THEMES_PATH;
-				$path = preg_replace('/\/(.*?)\/(.*)/', $module.'/\\2', $path); // remove leading slash + substitute module
+				// remove leading slash + substitute module
+				$module_path = $this->Application->findModule('Name', $module, 'Path');
+
+				if ($module_path !== false) {
+					$path = $module_path . 'admin_templates';
+				}
+				else {
+					// remove leading slash + substitute module
+					$path = preg_replace('/\/(.*?)\/(.*)/', $module . '/\\2', THEMES_PATH);
+				}
 			}
 			else {
 				$path = mb_substr(THEMES_PATH, 1);
@@ -574,6 +581,7 @@
 	function ModuleInclude($params)
 	{
 		$ret = '';
+		$included = Array ();
 		$block_params = array_merge($params, Array('is_silent' => 2)); // don't make fatal errors in case if template is missing
 		$current_template = $this->Application->GetVar('t');
 
@@ -581,8 +589,6 @@
 		$skip_prefixes = isset($params['skip_prefixes']) ? explode(',', $params['skip_prefixes']) : Array();
 		$cms_mode = $this->Application->GetVar('admin');
 
-		$included = Array ();
-
 		foreach ($this->Application->ModuleInfo as $module_name => $module_data) {
 			$module_key = mb_strtolower($module_name);
 
@@ -596,7 +602,7 @@
 				$module_prefix = $module_data['TemplatePath'];
 			}
 			elseif ($this->Application->isAdmin) {
-				$module_prefix = $module_data['Path']; // was $module_key . '/';
+				$module_prefix = $module_key . '/'; // was $module_data['Path'];
 			}
 			else {
 				$module_prefix = $module_data['TemplatePath']; // always have trailing "/"
Index: kernel/startup.php
===================================================================
--- kernel/startup.php	(revision 13106)
+++ kernel/startup.php	(working copy)
@@ -87,7 +87,7 @@
 
 	ini_set('memory_limit', '50M');
 
-	define('MODULES_PATH', FULL_PATH);
+	define('MODULES_PATH', FULL_PATH . '/modules');
 
 	define('EXPORT_BASE_PATH', WRITEBALE_BASE . '/export');
 	define('EXPORT_PATH', FULL_PATH . EXPORT_BASE_PATH);
Index: kernel/utility/unit_config_reader.php
===================================================================
--- kernel/utility/unit_config_reader.php	(revision 13106)
+++ kernel/utility/unit_config_reader.php	(working copy)
@@ -42,6 +42,13 @@
 	var $_directorySeparator = '';
 
 	/**
+	 * Regular expression for detecting module folder
+	 *
+	 * @var string
+	 */
+	var $_moduleFolderRegExp = '';
+
+	/**
 	 * Folders to skip during unit config search
 	 *
 	 * @var Array
@@ -58,11 +65,12 @@
 	{
 		parent::Init($prefix,$special);
 
-		$this->_directorySeparator = preg_quote( DIRECTORY_SEPARATOR );
-		$this->_skipFolders[] = trim(WRITEBALE_BASE, '/'); // system folder (where web server can write)
+		$this->_directorySeparator = preg_quote(DIRECTORY_SEPARATOR);
 
 		$editor_path = explode('/', trim(EDITOR_PATH, '/'));
 		$this->_skipFolders[] = array_pop($editor_path); // last of cmseditor folders
+
+		$this->_moduleFolderRegExp = '#' . $this->_directorySeparator . '(core|modules' . $this->_directorySeparator . '.*?)' . $this->_directorySeparator . '#';
 	}
 
 	function CacheParsedData()
@@ -95,24 +103,24 @@
 		}
 
 		$cache = Array(
-		'Factory.Files' => $this->Application->Factory->Files,
-		'Factory.realClasses' => $this->Application->Factory->realClasses,
-		'Factory.Dependencies' => $this->Application->Factory->Dependencies,
-		'ConfigReader.prefixFiles' => $this->prefixFiles,
-		'EventManager.buildEvents' => $event_manager->buildEvents,
-		'EventManager.beforeRegularEvents' => $event_manager->beforeRegularEvents,
-		'EventManager.afterRegularEvents' => $event_manager->afterRegularEvents,
-		'EventManager.beforeHooks' => $event_manager->beforeHooks,
-		'EventManager.afterHooks' => $event_manager->afterHooks,
-		'TagsAggregator.data' => $aggregator->_Array,
+			'Factory.Files' => $this->Application->Factory->Files,
+			'Factory.realClasses' => $this->Application->Factory->realClasses,
+			'Factory.Dependencies' => $this->Application->Factory->Dependencies,
+			'ConfigReader.prefixFiles' => $this->prefixFiles,
+			'EventManager.buildEvents' => $event_manager->buildEvents,
+			'EventManager.beforeRegularEvents' => $event_manager->beforeRegularEvents,
+			'EventManager.afterRegularEvents' => $event_manager->afterRegularEvents,
+			'EventManager.beforeHooks' => $event_manager->beforeHooks,
+			'EventManager.afterHooks' => $event_manager->afterHooks,
+			'TagsAggregator.data' => $aggregator->_Array,
 
-		// the following caches should be reset based on admin interaction (adjusting config, enabling modules etc)
-		'Application.Caches.ConfigVariables' => $this->Application->Caches['ConfigVariables'],
-		'Application.ConfigCacheIds' => $this->Application->ConfigCacheIds,
-		'Application.ConfigHash' => $this->Application->ConfigHash,
-		'Application.ReplacementTemplates' => $this->Application->ReplacementTemplates,
-		'Application.RewriteListeners' => $this->Application->RewriteListeners,
-		'Application.ModuleInfo' => $this->Application->ModuleInfo,
+			// the following caches should be reset based on admin interaction (adjusting config, enabling modules etc)
+			'Application.Caches.ConfigVariables' => $this->Application->Caches['ConfigVariables'],
+			'Application.ConfigCacheIds' => $this->Application->ConfigCacheIds,
+			'Application.ConfigHash' => $this->Application->ConfigHash,
+			'Application.ReplacementTemplates' => $this->Application->ReplacementTemplates,
+			'Application.RewriteListeners' => $this->Application->RewriteListeners,
+			'Application.ModuleInfo' => $this->Application->ModuleInfo,
 		);
 
 		$conn =& $this->Application->GetADODBConnection();
@@ -275,7 +283,8 @@
 			shuffle($this->configFiles);
 		}
 		else {
-			$this->findConfigFiles($folderPath); // search from base directory
+			$this->findConfigFiles(FULL_PATH . '/core'); // search from core directory
+			$this->findConfigFiles($folderPath); // search from modules directory
 		}
 
 		foreach ($this->configFiles as $filename)
@@ -743,7 +752,7 @@
 
 	function PreloadConfigFile($filename)
 	{
-		$config_found = file_exists(FULL_PATH.$filename) && $this->configAllowed($filename);
+		$config_found = file_exists(FULL_PATH . $filename) && $this->configAllowed($filename);
 
 		if (defined('DEBUG_MODE') && DEBUG_MODE && defined('DBG_PROFILE_INCLUDES') && DBG_PROFILE_INCLUDES) {
 			if ( in_array($filename, get_required_files()) ) {
@@ -771,7 +780,7 @@
 				// config file is included for 1st time -> save it's content for future processing
 				$prefix = array_key_exists('Prefix', $config) ? $config['Prefix'] : '';
 
-				preg_match('#' . $this->_directorySeparator . '(.*)' . $this->_directorySeparator . '#U', $filename, $rets);
+				preg_match($this->_moduleFolderRegExp, $filename, $rets);
 				$config['ModuleFolder'] = $rets[1];
 				$config['BasePath'] = dirname(FULL_PATH . $filename);
 
@@ -928,33 +937,36 @@
 	 */
 	function configAllowed($config_path)
 	{
+		static $module_paths = null;
+
 		if (defined('IS_INSTALL') && IS_INSTALL) {
 			// at installation start no modules in db and kernel configs could not be read
 			return true;
 		}
 
-		if (preg_match('#' . $this->_directorySeparator . 'plugins' . $this->_directorySeparator . '|' . $this->_directorySeparator . 'core#', $config_path)) {
-			// always allow to include configs from core and plugins folder
+		if (preg_match('#^' . $this->_directorySeparator . 'core#', $config_path)) {
+			// always allow to include configs from "core" module's folder
 			return true;
 		}
 
-		$module_found = false;
 		if (!$this->Application->ModuleInfo) {
 			return false;
 		}
 
-		foreach ($this->Application->ModuleInfo as $module_name => $module_info) {
-			$module_path = DIRECTORY_SEPARATOR . trim($module_info['Path'], '/') . DIRECTORY_SEPARATOR;
+		if (!isset($module_paths)) {
+			$module_paths = Array ();
 
-			// config file path starts with module folder path
-			if (substr($config_path, 0, strlen($module_path)) == $module_path) {
-//				if (preg_match('#^' . preg_quote($module_path, '/') . '#', $config_path)) {
-				$module_found = true;
-				break;
+			foreach ($this->Application->ModuleInfo as $module_name => $module_info) {
+				$module_paths[] = rtrim($module_info['Path'], '/');
 			}
+
+			$module_paths = array_unique($module_paths);
 		}
 
-		return $module_found;
+		preg_match($this->_moduleFolderRegExp, $config_path, $rets);
+
+		// config file path starts with module folder path
+		return in_array($rets[1], $module_paths);
 	}
 
 	/**
Index: units/admin/admin_config.php
===================================================================
--- units/admin/admin_config.php	(revision 13106)
+++ units/admin/admin_config.php	(working copy)
@@ -61,7 +61,7 @@
 				'priority'		=>	0,
 				'container'		=>	true,
 				'type'			=>	stTREE,
-				'icon_module' => 'in-portal',
+				'icon_module' => 'core',
 			),
 
 			'in-portal:service'	=>	Array (
Index: units/helpers/modules_helper.php
===================================================================
--- units/helpers/modules_helper.php	(revision 13106)
+++ units/helpers/modules_helper.php	(working copy)
@@ -212,7 +212,7 @@
 			$ret = Array ();
 			while (($entry = $folder->read()) !== false) {
 				$entry_lowercased = strtolower($entry);
-				if (!is_dir($folder->path . '/' . $entry) || in_array($entry_lowercased, $skip_modules) || (substr($entry_lowercased, 0, 3) != 'in-')) {
+				if (!is_dir($folder->path . '/' . $entry) || in_array($entry_lowercased, $skip_modules)) {
 					continue;
 				}
 
Index: units/helpers/sections_helper.php
===================================================================
--- units/helpers/sections_helper.php	(revision 13106)
+++ units/helpers/sections_helper.php	(working copy)
@@ -143,6 +143,7 @@
 					$this->Tree[$section_name]['icon'] = $regs[2];
 					$this->Tree[$section_name]['icon_module'] = $regs[1]; // set "icon_module" used in "combined_header" block
 					$module_folder = trim( $this->Application->findModule('Name', $regs[1], 'Path'), '/');
+
 					if ($module_folder == '') {
 						$module_folder = 'core';
 					}
@@ -150,25 +151,27 @@
 				else {
 					$module_folder = $this->Application->getUnitOption($section_params['SectionPrefix'], 'ModuleFolder');
 					if (!array_key_exists('icon_module', $section_params)) {
-						$this->Tree[$section_name]['icon_module'] = $module_folder; // set "icon_module" used in "combined_header" block
+						// set "icon_module" used in "combined_header" block
+						$this->Tree[$section_name]['icon_module'] = $this->Application->findModule('Path', $module_folder . '/', 'Name');
 					}
 				}
 
 				// this is to display HELP icon instead of missing one.. can be replaced with some other icon to draw attention
 				$icon_file = $module_folder.'/admin_templates/img/icons/icon24_'.$this->Tree[$section_name]['icon'];
 
-				/*$core_file = FULL_PATH.'/core/admin_templates/img/icons/icon24_' . $this->Tree[$section_name]['icon'].'.gif';
-				if ($module_folder != 'core' && file_exists($core_file) && file_exists(FULL_PATH.'/'.$icon_file.'.gif')) {
-					if (crc32(file_get_contents($core_file)) == crc32(file_get_contents(FULL_PATH.'/'.$icon_file.'.gif'))) {
+				/*$core_file = FULL_PATH.'/core/admin_templates/img/icons/icon24_' . $this->Tree[$section_name]['icon'].'.png';
+				if ($module_folder != 'core' && file_exists($core_file) && file_exists(FULL_PATH.'/'.$icon_file.'.png')) {
+					if (crc32(file_get_contents($core_file)) == crc32(file_get_contents(FULL_PATH.'/'.$icon_file.'.png'))) {
 						trigger_error('Section "<strong>' . $section_name . '</strong>" uses icon copy from "Core" module', E_USER_NOTICE);
 					}
 				}*/
 
-//				if (!file_exists(FULL_PATH.'/'.$icon_file.'.png')) {
-//					$this->Tree[$section_name]['icon'] = 'help';
-//					$this->Tree[$section_name]['icon_module'] = 'core';
-//				}
+				if (!file_exists(FULL_PATH . '/' . $icon_file . '.png')) {
+					$this->Tree[$section_name]['icon'] = 'help';
+					$this->Tree[$section_name]['icon_module'] = 'core';
+				}
 			}
+
 			$this->Application->HandleEvent( new kEvent('adm:OnAfterBuildTree') );
 
 			if (isset($this->Application->Memcached)) {
Index: units/modules/modules_event_handler.php
===================================================================
--- units/modules/modules_event_handler.php	(revision 13106)
+++ units/modules/modules_event_handler.php	(working copy)
@@ -131,7 +131,7 @@
 			foreach ($new_modules as $module) {
 				$module_record = Array (
 					'Name' => $toolkit->getModuleName($module),
-					'Path' => $module . '/',
+					'Path' => 'modules/' . $module . '/',
 					'Version' => $toolkit->GetMaxModuleVersion($module),
 					'Loaded' => 0,
 					'BuildDate' => null,