Windows SP2, For now, just SAY NO

So, There I was,SP2 was recommended, Soooo like an Idiot, download it, I did. BIG mistake, COMCAST wouldn't work, couldn't sys restore, ended up buying a new copy of winXP and starting from scratch. A couple of C-Notes for my mistake.I even did a restore point prior to my download, but after, I couldn't get to it. Anyway,