I know a little PHP. Actually wrote a few scripts myself. E-mail me with specific issues you might need help with.
admin@allaboutnothing.net
About phpBB2, download and install a theme. When the theme you want is installed, go into the theme properties and change the colors there. Usually, however, you can find comments within the theme telling you a thing or two about what goes where and how it works. I'll give you a hand at that, too, if you'd like. Just e-mail me.