To use these images, first take ownership of the system file "explorer.exe" in the %c:/windows/% directory. 
Take Ownership Registry Keys are provided with in this themes main folder.
Open up the explorer.exe file with Resource Hacker, Resource Tuner, Restorator 2007, or similar program.
Asign each .bmp image to there corresponding image numbers in the "BitMap" directory, once the system file is opened.
Restart Explorer through task manager, or log off and back on for the images to appear.