Well, I feel much better that I am not the only one who doesn't understand rivets. I mean, I get the entire concept but when you look at a rivet... it just don't make sense I guess until you see it in action.
The rivet has one end that is like a nail, and the other end has a a sleeve over it, with, for lack of a better term, "ball" on the end. So, if I understand those tutorials correctly I would need to drill a hole and push the "ball" end of the rivet through it. Then you attache the rivet gun on the ball and squeeze it pulling the "nail" part through?