[John Galt]

I've done the belt on my Caliber a dozen times, it is tricky.

Here is a video that shows replacing the belt with the engine out of the car, and it shows you the location of the alternator:

Here is a video of belt replacement with the engine in the car:

Here is a video of alternator replacement (search on youtube and you will find several more):

Search google for '2007-PM-SM.pdf' to get the factory service manual, it will have detailed steps on how to do the work.