Custom post Odd Behavior

[zanthor]

I've written an addon for vbulletin 4.0 that I'm using to accept applications to my warcraft guild. The idea is they fill out a simple form, provide answers to my questions, it validates that they provided SOME answers and then posts a new thread.

Every time I do this, or my main assistant does it, it works fine, the post is made, all is good (sample). Every time random-new-user does it, the post appears, however all the fields they fill out are empty (sample).

The application form (Requires registration):
http://www.botbh.com/misc.php?do=apply

Attached is my code implimented as a hook/plugin. (Code block processes BBCode apparently.)