I have had vb3.0x and vbgallery for a long time working fine.
Last week, upgraded to 3.52 and the appropriate version of the gallery, and since then, it's weird. The Gallery wont accept log in, and you can't upload files, it just tells you to enter the forum login, and it wont accept it. I really am confused.
You can test the settings by loggin into my site with login/password: test/test.
The site is at http://aquatic-photography.com
Looking forward to getting some help