user id not passed in url in admin cp
 

Simply put, we hijack register.php and run our own registering routine, inserting the new user data afterwards.

All of the users that have registered using our method don't have a valid id passed in the edit part of user.php in the admincp. The links look like:

http://community.purevanity.net/admincp/user.php?do=edit&u=

However, all previously existing users have their id passed.

It looks like the problem code is:
For some reason, $user[userid] is null when handling one of our registered users, but not others.

Any ideas?