Perhaps by googling "vista firewall config" - It's what I'd do if I had to work with something I hadn't used before. See, shit like this is why I assume people know fuck-all about IT until they demonstrate otherwise
If you've got stuff half installed, especially AV or firewalls that hook in at a low level, I'd be tempted to get my mate back, backup anything you need, wipe the bastard clean and start again with an OS you get on with.
It takes a fair amount of self research & RTFMing to adopt successfully to a new OS. If, for whatever reason, you don't want to do that then IMO you're in for an headache. If you do want to move across to vista then buy a beginners/intermediate guide to it and bite the bullet
If you've got stuff half installed, especially AV or firewalls that hook in at a low level, I'd be tempted to get my mate back, backup anything you need, wipe the bastard clean and start again with an OS you get on with.
It takes a fair amount of self research & RTFMing to adopt successfully to a new OS. If, for whatever reason, you don't want to do that then IMO you're in for an headache. If you do want to move across to vista then buy a beginners/intermediate guide to it and bite the bullet


!!
Have you double checked it with a different laptop...? What happens if you connect using network cable instead of wireless...?
