I can't believe I didn't take a shot of the bike with the seat removed. There is a tab that sticks out near the tank, facing the rear of bike. The seats all have a slot of some kind. You just put the seat on the bike and slide it forward so the tab goes into the slot on the seat and then install the machine screw that holds the rear bracket to the nut in the top of the fender.

But here is a picture with the new seat. Of course part of the improved look is the removal of that rear pillion and sissy bar. I should have taken a picture of the bike with nothing but the stock solo seat on it, but I wasn't thinking. Without a doubt, the bike is so much nicer looking with this new seat. This seat looks like it belongs on this bike.