Okay so tommorrow I will be recieving a copy of windows xp home sp3. At the moment I have boot camp version 2.0. On the apple site it says you need version 2.1 boot camp for service pack 3. I downloaded the update (2.1) on apple's website but it's an .exe file which of course will not open. Am I doing something wrong? Can I still install sp3 with 2.0?