Hi, Ive attempted to install this contribution for a friend and its all gone tits up. Ive followed the instructions. Overwritten all the files (starting with the earliest version, to the latest). Ran the piece of code in the SQL database. But on attempting to access the admin panel I am stumped by this error : "Fatal error: Call to undefined function: tep_admin_check_login() in /htdocs/catalog/admin/includes/application_top.php on line 215" Application_top has not been modified itself so why are the newly modified files stopping application_top from using the function "tep_admin_check_login()"? Any help GREATLY appreciated! :( His site is sitting in an unusable state. Thank you!