Changing Starter Help.

[THE "10" SILVERADO]

Hey guys,
Bad news. After scouts tonight my starter crapped out on me. Won't even turn over. Jumped it off a friends truck, nothing. This happened a couple of days ago and I thought my alternator died because I was able to jump and start so the alternator was replaced.

Now I have to leave my truck in a parking lot till tomorrow. Step-dad is going to pick up a starter for me so we can replace it but I have no idea how.

Can anyone tell (or post pics) of how to change one?

Thanks...