How to fix this?, Paint and oxidation Options

[jtmlb3k]

Well, some bad luck. I left my car at home while I was away at college this year, and just came home to find it in much worse shape than when I left. Apparently my sister had been driving it and "bumped into a few things." There are a few dings and such-- nothing too serious (my car's got some cosmetic issues anyways...meaning the front end is a different red than the back after the previous owner got into an accident)-- but what I can't figure out is how there are no so many paint issues: paint peeling, rust bubbles, oxidation and such.

So my question is, does anyone know how to best deal with these issues? Also, what's the best way to deal with sunfading or whatever it's called of the paint?

Any advice would be awesome. Thanks!