PiP,
"VinylmanP"...good one !
I did a set of 'Vette seats awhile back. Seats are like a wrapped gift, you don't know what you'll find(that needs help) until you get inside !
As has been said, remove the seats from the car so that you can work on them properly. Learn as you go. Use common sense, and the good advice of L'man and RLeo etc. and before you know it you will truly deserve the title "VinylmanP" !