-if ((ereg(basename(__FILE__), $_SERVER['PHP_SELF'])) || (!IS_ADMIN())) {
- $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
- require($INC);
-}
+if ((!defined('__SECURITY')) || (!isAdmin())) {
+ die();
+} // END - if
+
+// Is sql_patches not yet installed?
+if (!isExtensionInstalled('sql_patches')) {
+ // Output warning
+ displayMessage('{--ADMIN_WARNING_SQL_PATCHES_MISSING--}');
+} // END - if
+
+ // Load include file 'overview-inc' (old standard overview page)
+loadIncludeOnce('inc/modules/admin/overview-inc.php');