snakeums

Hey everyone! I just recently purchased an external hard drive from this site http://store.yahoo.com/megacode99/pocsizusb20c.html and i hooked it up like usual and it's not being recognized at all by my windows xp. I'm not sure what to do. Any help would be most appreciated. Thanks *EDIT* After going over it more and more i realized that i'm completely retarded and purchased the case and NOT the hard drive itself. Although if anyone can point me in the direction of a CHEAP 60-80 GB 2.5" hard drive that would be much appreciated as well.