punzak9

I had my car for 1 year and a half and am still finding some stuff about my car that I need help with. First I live in Pittsburgh, PA and my firebird is my daily driver (not the best Pittsburgh car, but I deal with it lol)
1) Anyways yesterday I noticed that my rear window was all frosted up, but my other windows were fine. When I went to clean the frost off from the outside I found out that the entire INSIDE of my rear window had the frost on it. Anyone know why my inside would frost? It also does that on the inside T-Tops around the edges.
2) I've noticed latley (2-3 months) that when I turn my steering wheel, say to pull in or out of a parking spot, that there is a grinding/rubbing noise coming from what I belive is the wheels. This only started happening recently and it seems to get worse. At the beginning it would only do that when I turned the wheel all the way, now it does that at half way. Any thoughts?
3) Lastly, are a real bad squealing in my breaks. I drove to the golf course last spring and it was fine going there, but on the way back everytime I touched the breaks there was a horrible squealing noise. The road was gravel, so I checked for any jambed rocks and found none, then I changed the beaks (myself), and thought would be the end of it but is still makes that noise! I thought that if I wore the pads in then it would stop, but it didn't.
If anyone can help with any of these, I would really appriciate it. These are just some annoying and wierd problems I've been dealing with and would like to try to get answered if I could. Thanks, to everyone in advanced.