Sorry it took me so long to get back to you, had some family issues as of late. I do know CSS actually, have taken several classes on the language plus done numerous web sites using it. Not sure how much I can change the theme actually as they have them pretty much locked down tight, I have messed with my own zguild page and while you can change colors, widths of borders and such, the themes they give are what you get. Until they make it so you can upload your own again or pay for it (which I am sure is how they are going to do it, the bastards), I don't know really how much I can change for you.
I don't mind giving it a shot, just don't want anyone to think I can work miracles with a limited base lol
Lin