1. Try this thread:
http://www.automotiveforums.com/vbul...d.php?t=665246
It says it's for the Grand Am, but it's the same on the Alero.
2. Duct tape fixes a lot of broken stuff. Make sure your spare has air in it. Maybe a quart of oil, and some basic hand tools. I'm not sure how far from civilization you will be, but consider the climate and terrain, and how long it would take you to walk to help. Bring a good map also.