The bottom seat has a 10mm bolt that holds it in. It is located between the bottom and back nearer to the driver's side, but in the center (at least on the 5th gens). Put your hand between the seat and feel around for the bolt. Remove that bolt and then the bottom pulls up and toward the front of the car, you should be able to figure out how to get the bottom out from there.

The back is held on by 2 bolts, one on each side where it hinges. It's really simple, actually. hih