Win XP SP2

Last night Windows Auto Update poped up saying Windows XP Service Pack 2 is ready to install. I wasn't going to install SP2 any time soon due to the negative feed backs I've been hearing. But since it's available now, I'll give it a shot. After 15 minutes, it installed fine. After reboot, it asked me if I wanted to enable Windows Firewall. I enabled it and surprising it only asked if I want to disable Winny. Adaware, Spybot, AVG anti-virus worked fine despite the fact that many security applications will not compatible with SP2. My next concern is Nero 6. I can't recall who told me this but some one said that he had to update his Nero 6. Last time I updated my Nero 6, it screwed up something and I couldn't run Nero. Hope I don't have to do that...