Front two bolts are seen when the seat is all the way back. To see the rear bolts, you need to move the seat forward all the way AND all the way up. Up is what that handle on the outside of the seat is for. Sit in the seat, lift the handle, and move forward. The seat will go up.
Remove the plastic covers on the rear of the seat posts and remove bolts.
Pic's here
http://www.peachparts.com/shopforum/showthread.php?t=118422&highlight=pool+noodle
Watch out for sharp edges!
Clay