Index: branches/unlabeled/unlabeled-1.57.2/core/kernel/session/session.php
===================================================================
diff -u -r8186 -r8232
--- branches/unlabeled/unlabeled-1.57.2/core/kernel/session/session.php	(.../session.php)	(revision 8186)
+++ branches/unlabeled/unlabeled-1.57.2/core/kernel/session/session.php	(.../session.php)	(revision 8232)
@@ -273,13 +273,26 @@
 	{
 		$this->PersistentVars[$var_name] = $var_value;
 
-		$replace_hash = Array (
-								'PortalUserId'	=>	$this->Application->RecallVar('user_id'),
-								'VariableName'	=>	$var_name,
-								'VariableValue'	=>	$var_value
-						);
-		$this->Conn->doInsert($replace_hash, TABLE_PREFIX.'PersistantSessionData', 'REPLACE');
-
+		$user_id = $this->Application->RecallVar('user_id');
+		$key_clause = 'PortalUserId = '.$user_id.' AND VariableName = '.$this->Conn->qstr($var_name);
+		
+		$sql = 'SELECT VariableValue
+				FROM '.TABLE_PREFIX.'PersistantSessionData
+				WHERE '.$key_clause;
+		$record_found = $this->Conn->GetOne($sql);
+		
+		$fields_hash = Array (
+			'PortalUserId' => $user_id,
+			'VariableName' => $var_name,
+			'VariableValue' => $var_value,
+		);
+		
+		if ($record_found) {
+			$this->Conn->doUpdate($fields_hash, TABLE_PREFIX.'PersistantSessionData', $key_clause);
+		}
+		else {
+			$this->Conn->doInsert($fields_hash, TABLE_PREFIX.'PersistantSessionData');	
+		}	
 	}
 
 	function RecallPersistentVar(&$session, $var_name, $default = false)
@@ -780,11 +793,16 @@
 		$last_env = $this->getLastTemplateENV($t, Array('m_opener' => 'u'));
 		$last_template = basename($_SERVER['PHP_SELF']).'|'.substr($last_env, strlen(ENV_VAR_NAME) + 1);
 		$this->StoreVar(rtrim('last_template_'.$wid, '_'), $last_template);
-
+		
 		$last_env = $this->getLastTemplateENV($t, Array());
 		$last_template = basename($_SERVER['PHP_SELF']).'|'.substr($last_env, strlen(ENV_VAR_NAME) + 1);
 		$this->StoreVar(rtrim('last_template_popup_'.$wid, '_'), $last_template);
 
+		if (!$wid && $this->Application->IsAdmin() && $this->Application->LoggedIn() && ($t <> 'login')) {
+			// only for main window, not popups, not login template (used in adm:MainFrameLink tag)
+			$this->StorePersistentVar('last_template_popup', $last_template);
+		}
+		
 		// save other last... variables for mistical purposes (customizations may be)
 		$this->StoreVar('last_url', $_SERVER['REQUEST_URI']); // needed by ord:StoreContinueShoppingLink
 		$this->StoreVar('last_env', substr($last_env, strlen(ENV_VAR_NAME)+1));