is there any rules there, i didnt see any in the rules but, i didnt know if i couldnt put religion related things on my biography or bands that i like?
You can, but if you put lyrics, acknowledge them. Religious stuff is fine, such as an Ascii Cross. Just don't post any stuff that might be hostile or such towards others. Just exercise digression.
Well, the about/your profile follows the same rules as the rest of the site. So, it is pretty simple. If you wouldn't post it on the forums, you probably should post it on your profile and vice versa.