Perhaps yall can help me. "No Thread Specified" Error Please Help!

Aight some members of my board are getting the "No thread specified" error. Most ar not but some are. I tried to do what the instructions on the first post say but My new thread template does not have that text enctype="multipart/form-data" it has <form $enctype action="newthread.php" . So I don't know what to change it to get rid of the uploading feature that this post @ vbulletin.com says will fix it http://www.vbulletin.com/forum/showt...threadid=41098

Okay forum is at http://www.dpgc-2g.com/dpgc2g_forum
Version: 2.2.4
Test Account: User name = testing & Password = testdpgc2g
Here is what I am running:
MySQL 3.23.45
Apache/1.3.20
PHP 4.1.2

here is the phpinfo.php file http://www.dpgc-2g.com/phpinfo.php

Any help is appreciated.