Fireboard "themes" are a cinch to create.. I had mine done just the way I wanted in a few hours... May I suggest Using Firefox browser with the webdev plugin. in that way, using the css style plugin in firefox you can see the css file. make color changes, save out the edited css file and replace the original css file.. with a bit of internet searching you can find how to add in any image files, how to position them and do any other kind of editing you may need to make fireboard look as you wish it to look....
fireboard theme-ing is really basic... don't be afraid to dig in to it