As Cougar mentioned one of the most straightforward things to do is just jumper 12V directly to the blower. If it runs that way then the motor isn’t dead. Another thing you can do if you have a voltmeter is just find out if you get 12V at the blower connector.
If you have to replace it, I don’t know the Vibe’s setup - but one of the most common is that its just mounted with about 3 screws up in the dash behind/under the glove box. Sometimes you have to remove a trim panel.
Mostly it sounds like you want to drop $20 at an auto parts store for a repair manual. Autozone’s website also has some basic, barebones repair info for most cars that is free.