Thanks Chuck

I set that using phpmyadmin and now I have admin access. whew! However, even when I sync the user groups with ipb, the user groups listed in classifieds admin panel are not in sync at all. i am admittedly clueless when it comes to these things so i am reluctant to just change the names in the database through phpmyadmin or through classifieds admin controls.
You can see in the screenshots below, the Photopost users all look right. The Classifieds users have some wrong names and are missing groups. Is there an easy and safe way to fix that? If it involves phpmyadmin, please accept my ignorance and provide detailed instructions on what i need to change there. Thanks in advance for any assistance you can provide.