Yeah that's a good one. However, I have found Koroush Ghazi's guides to be very informative as well. He not only has a XP guide but Vista and game and program specifics as well. You can view his XP and Vista guides here All of his guides can be found right here Enjoy! I did notice Tweakguides has been mentioned in this forum but the posts are about 2 years old. I guess they were lost in the shuffle.
Have you tried right-clicking the desktop - Arrange Icons By > [clicking] "Show Desktop Icons" ? Just a guess.