Selectable Backgrounds

[mewuppy]

I know a plugin like this already exists, it's just far too flawed and I really love the idea. So basically there is a little button in the bottom right corner that brings up a popup when you click it. On the popup there is a list of images(submitted by admin) that user can set as their background.

[slip1974]

I tried installing this, but failed. Where do you get the backgrounds from to install. Is there a list of codes? The letter "T" does show up, but how do we complete the installation.