I downloaded and installed the network version from the MSoft site.
I have a very good firewall so I wanted to disable Microsoft's version.
The Microsoft Firewall can be disabled, however there are a few settings you need to disable.
The first time you start into windows after you install SP2, there will popup a window on the subject of security.
There are 3 options for you, firewall, antivirus and 1 other (I can't recall what it is at this moment).
This window has also an icon in the system tray.
Along the bottom are 3 options covering those items.
Select the Firewall and disable.
Then go into Start / control Panel/ Microsoft Firewall.
There are tabs along the top. Go into each one and disable all items.
That's it.