Bill 7/29/2011If I remember correctly all you should need to do is loosen the bolt on the top of the alternator and push forward. It should just slide off after that. If anybody wishes to add or correct me please do. It's been awhile . Also you should mark where the bolt was so that you can tighten it back to where it was.
HouseCallAuto 7/29/2011If the serpentine belt broke it is highly likely that there is a frozen component that the belt rotates. Using your hands, manually rotate / spin all pulleys and components that the belt drives and find the cause of the belt failure. I am doing this 36 years and the odds of you simply being overdue for a serpentine belt replacement and having your belt snap as a result are extremely low. This happens maybe one in 20 times that I have gone to a car with a broken serp belt. So, at this time the procedure to replace the belt is a moot point. You may not be able repair the actual cause yourself depending on what failed. Could be a seized alternator, AC compressor, idler pulley, belt tensioner pulley, power steering pump, etc, etc. Look for something that does not turn or is very tight to turn.