Time Machine

application:
server1= dotnet aspx webpages (Windows XP)
server2= appserver hosting java app(Windows XP)
server3= database (AIX)

communication by tcp/ip and web services. I would like to test in the future and past.

where should I load time machine?
the software works differently on Windows 2003 vs XP, is there a upgrade patch for the XP version?