Admin php file for profile fields?

[Reeve of shinra]

I think I screwed up a hack somewhere because when I try viewing the existing custom profile fields, the page displays "User Profile Fields in Area: Edit Profile" but thats it.

What file administrates this so I can check it for errors?

Thanks :)

[Dean C]

Start with user.php, then profilefield.php and possibly adminfunctions_user.php and adminfunctions_profilefield.php