I know I definately didn't activate mine.. Besides that how does anyone who actually uses their firewall get used to verifying every single url pratically, every program seems to need to be approved every time you use it - I seriously found it much more difficult to use it than anything I have used software based in 15 yearsof computing, no joke.
It did save my ass huge once when I had a work though, but I figure if i ever get anythign destructive my other AV programs won't pick up I just reinstall norton again and uninstall when done
AVG and Zone Alarm seem to be working just fine ... also using Microsoft's Anti-Spyware