Fire

Skin by: ME!
Artwork by the awesome ViralattackX [link]

How to make it work:
download the .zip file to your desktop (you can delete this file once the unzipping is done)
unzip the .zip file into C:\windows\resources\themes\ using Winzip



Now that the unzipping is done, right click anywhere on your desktop
click on Properties
If you're using XP, click on the tab that says "Themes"
Click on the themes scroll menu arrow and click on Browse
get into the directory C:\windows\resources\themes\ that you just unzipped the files into and double click on whichever theme you just downloaded from me
now click Apply on the bottom right and all is happy!
(the screen capture shows where most of these things are/should be.

If I remember right, for earlier versions of windows, the same process will be under the Appearance tab.