Just an idea, you can test and see if it will work or not.
Every file has something like this on beginning:
PHP Code:
// #################### DEFINE IMPORTANT CONSTANTS #######################
define('THIS_SCRIPT', 'usernote');
This one is from usernote.php. Try to edit usernote and put profile instead. It can affect how vBulletin works, so be prepared to put things back and if it would work, test other things as well before you start thinking that it solved your problem.