You should try strivectin - it's specifically made for scar removal. I think you can get it at walmart now. I also got something at the store one time that had onions in it (it didn't smell like it), but I remember that working pretty well.

Have you considered microdermabrasian? It's a process that removes the top layer of your skin and supposedly gets rid of old scars - I would do it but I think it costs a lot of $$$

you can also use makeup to cover up the scars if you can't afford microdermabrasian.