*** upgrade from 5.x *** Step.1 Upload following files&folders(including sub-folders): includes/ modules/ files/common_css/style.css upgrade_from/5.x/ Step.2 Excute the following URL on your web browser: http://YOUR_JCOW_URL/upgrade_from/5.x/database.php (then delete this file from your server) Step.3 Login as admin. Go to "admin CP" -> "Modules", and click "Update modules". Step.4 Go to homepage and refresh your web browser. Finished.