Index: trunk/core/units/general/helpers/mod_rewrite_helper.php
===================================================================
diff -u -N -r4792 -r4806
--- trunk/core/units/general/helpers/mod_rewrite_helper.php	(.../mod_rewrite_helper.php)	(revision 4792)
+++ trunk/core/units/general/helpers/mod_rewrite_helper.php	(.../mod_rewrite_helper.php)	(revision 4806)
@@ -93,12 +93,19 @@
 						$this->HTTPQuery->Set('m_cat_page', $rets[2]);
 					}
 
-					$sql = 'SELECT CategoryId
-							FROM '.TABLE_PREFIX.'Category
-							WHERE NamedParentPath = '.$this->Conn->qstr($category_path);
-					array_push($category_stack, $this->Conn->GetOne($sql) );
+					if ($category_path == '') {
+						// this is "Home" virtual category
+						array_push($category_stack, 0);
+					}
+					else {
+						$sql = 'SELECT CategoryId
+								FROM '.TABLE_PREFIX.'Category
+								WHERE NamedParentPath = '.$this->Conn->qstr($category_path);
+						array_push($category_stack, $this->Conn->GetOne($sql) );
+					}
+				
 					$category_found = end($category_stack);
-					if($category_found) $url_part = array_shift($url_parts);
+				if ($category_found !== false) $url_part = array_shift($url_parts);
 
 				}while ($category_found && $url_part);
 
@@ -108,7 +115,7 @@
 					{
 						$category_id = array_pop($category_stack);
 					}
-					if($category_id)
+					if($category_id !== false)
 					{
 						$this->HTTPQuery->Set('m_cat_id', $category_id);
 					}