Help me! (Site Malfunction?)

[Deranged Lil' Hobbit]

I'm a newbie (hi,) and have been trying to post my fanart. I've already e-mailed for help, but have gotten no response. I'm going bananas!

Now the main problem is, I can log onto the forums, BUT cannot stay logged in while on the other half of this site. I get a message in the upper-left corner of the window saying, "You are logged in, but your name and password do not match. Please log out and try again."

Also, I can't find the darn log-off button.

Help me? Anyone? I will be eternally grateful!

Thanks!