I have to get a new liner due to a tear in mine. It will be installed Tuesday weather permitting. The dealer doing my replacement said the only thing I need to do is drain the pool (no problem half the water is gone anyway) and remove the rails. He will do everything else. Sounds simple enough, right? Well, I popped the caps off and I don't think it's going to be so simple. The screws are all rusted and it looks like they stripped the heads during install. Does anyone have any suggestions on what I might be able to do? Thanks!