3
After I thought about it more I should have mentioned that it's preferable to change the theme .css. I have a tendancy to protect the orignal files css for just in case reasons. At least this is what has worked for me in the past.
Anyhow, hope it's all working out for you
*edit*
Or not. I just looked at your boards, maybe it may be easier to just change the css for them instead. Bah, I guess it doesn't matter so long as you get the results you want. I'm no .css ex-spurt, so you'll have to muddle around and see what you can achieve.
God I hope someone else chimes in and offers some input, like which ID's to change or something to help make your search a little easier...
Cheers!