So is Silverfish XP at
BillyEvil.Com This theme was an attempt to bring the beauty of xp along with some improvements. I hope you enjoy it.
The bottem taskbar is an overlay image and the theme was made specifically to be modular and easy to change. Basically to change the background just replace the desktop.bmp with your 240x294 bitmap and to replace the startbar at the bottem just replace OImage9.bmp in the desktop folder with your own bitmap. It's just that easy.