Just one more thing. Does Windows defender have to be turned off in order to use a 3rd party firewall? If so, how is it done. I don't yet have any experience of Vista biut want to get up and running asp and then sort out the details later.
Yes, it does have its own firewall, which I think is better than that in XP. However, I preferred to disable it and use the ZoneAlarm for Vista in my previous link. Go to Control Panel (or Start menu) and open Vista Admin Tools where you will find Firewall controls.