Need help FAST +REP

[graffiti]

Ok basically I downloaded and extracted this:
http://lassekongo83.deviantart.com/art/Kupo-XP-Dark-71165671
into a file i made.. now how do i install the skin onto my computer as i still have the default xp shiz here

[Xoim]

http://www.thepcmanwebsite.com/install_themes.shtml