AAAAGH! Well I guess its not charging, as my car is dead. When I first threw the alternator in, Kragen tested it and it was not charging. I noticed the drivebelt was overtensioned, and not moving. I loosened it, belt started moving, and we retested the alternator. IT WAS CHARGING! Then the light started coming on at an idle and the rest is history. Could it still be an incorrectly tensioned belt, the belt definitly turns? Also, I had some trouble reattaching the wiring harness to the back of the alternator, it didnt make a solid "click". Any suggestions at all would be greatly appreciated! I can fix whats broken, but can't diagnose AT ALL! Thank you!!!