V3 on Windows Server 2003?

I’m currently running version on a Windows Server 2003. Reading through some older posts I saw that V3 could not be used on Server 2003 until some bugs were fixed up. Have they been?

If they have and I can upgrade to V3 will all of my current settings be automatically applied to the new version. If there is a FAQ about moving from V2 to V3 please let me know. I didn’t see it in searching. I have tons of IP addresses that I currently block and really don’t want to have manually enter all of these again so am very interested in knowing of the best way to make this move.

Any help/suggestions would be most appreciated. Thanks.