I was just like you, reading all these negative comments and was like, "No way I'm gonna try ZA beta 7..."
Finally, I said, "what the **bleep**." Downloaded it and installed it. Guess what?
It works. No BSOD. No crazy registry editing. Just works.
Now, in truth, my boot is noticeably slower. That is something I'm sure they're working on right now. But the BETA worked perfectly for me. I just wanted to tell you all this because it's very easy to get the impression from reading this forum that installing ZA will melt your computer or something. No software is perfect and it will take time for every vendor to improve performance on Vista. Maybe ZA is not for you. Well, then try something else. But let's stop beating a dead horse or at least try to get some perspective.
My 2 cents...
IBM T43, 14.1 SXGA
2GHz P-M w/2GB RAM
Vista Home Premium
Operating System:Windows Vista Home Premium
Product Name:ZoneAlarm Internet Security Suite
Software Version:7.1 (Vista)