It's called ObjectDock. Do a quick Google search on it, and you'll get all the information you need. I'm using the Silver Windows Theme; I used to have a custom one, but I had to reformat and haven't bothered to patch it back so that I can use a custom one. I'm happy with the silver one, anyways.
the only thing ive got on my desktop is the recycle bin..i liek things to look clean and simple aswell...the only things as close to icons is the quick launch menu which only consist of firefox, media player and msn..other than that, nothing!