Does anyone know how to customize a forum?
colors, headers, etc? i know how to design and such, but where to place the codes is beyond me; please help?

Topic Moved to Webmaster's Corner.

it depends on the forum software you're using, and where you're hosting it. sometimes if you have it hosted at a place that hosts only forums, you'll have limited access to customizing it. if you host it yourself, you can change anything, but each forum and their versions are different.