[Whiteknite]

I hope I am in the right place to post this.
Several months ago I purchased Vbulletin's message forum 4.0 for my web site; truchristianchat.net. I am for the most part, pleased with it. It is very extensive and I am learning as I go. I didn't realize knowing PHP was necessary.
All that being said; I purchased chat room software from 123flashchat.com for my site. It is compatible with Vbulletin, Which is why I purchased it.

I had a hard time getting to know how to get the full version to work, but now it's up and running. The problem I am having now is this: For a while the chat room was working, then just wouldn't connect. I contacted my hosting company and they helped get it working right. But now there is at least 1 member who is not even listed on the members list, and his posts have disappeared. Yet he remains listed on my admin panel. My hosting company, which is Host Gator, suggested it may be a permissions issue.
Can someone tell me how to see the permissions and hopefully correct this?
Thank you in advance.