The Why Store Desktop theme is for Windows users. All you need to do is just download the zip file into the Windows Directory. Then Unzip it and You got yourself a Why Store Desktop theme.

Why Store Desktop Theme Downloads
What I have now is just a Beta Version of the Chris Shaffer Desktop theme. It has a backround and it also has a screen saver. NOTE this is not the final one it is just a beta.
Desktop Theme of Shaffer