Kraven and Mom.... try to log out, clear you browser cache and cookies and log back in. If that doesn't help, it could simply be the backbone that connects you to the node that MP is on.
You can clear you browser cache and cookies in most browsers by pressing Ctrl-Shift-Delete (Windows) or Command-Shift-Delete (Mac). If you need help, post or PM me and I'll try to help out.
TechAdmin.... I use a chat box on a couple of the forums that I host and the members love it. It quickly becomes what the Old Fart's Club thread is now. I don't use vBull any more but I'm sure they have a chat add-on. Mine is called shout-box.
Also, I don't think anyone would mind if you put up a small Paypal donation button so people could donate to the site if they wish.
There are also add-ons that list the most recent uploads, and most recent pictures. People here have wanted the return of the bud-of-the-month thing (albeit, that was before I was a member here). I'm sure there's an add-on for that. I did install one game add-on with Texas Holdem and a few other games that the members could play.
I know add-ons are a PITA when it comes to upgrade time but some of them are pretty neat.
A member buy and sell forum might be popular. Most forums set some kind of restrictions on this to prevent scammers. I usually set membership duration and number of posts as a minimum. I have not been here but there are a few members that I feel I could trust enough to buy and sell stuff.
Oh, and if you have time, the downstairs bathroom needs remodeled and the garage needs cleaned. LMAO