How to edit iPod Touch Summerboard?

Hey, uhm, I am somewhat used to iPod touch hacking, but, this has been a problem for me since day 1 of hacking my Touch.

I am having troubles editing the Summerboard Background image, is there a way to do this…or. How does that work?

Just in case, so I am clear about summerboard, I mean where all of the Applications Icon’s are, I hate watching the boring old Black bacground that really annoys me, I want to bring some life to my Touch =]

Thanks in advance.