Moving 6.7.2 on a Windows 2000 server to a Windows 2008 64 bit server

System

I have TS 6.7.2 on a Windows 2000 server. I want to move it to Windows 2008 64 bit server. It looks like only 2008 32bit is supported since the installer gives me the following error.

Dependency and Compatibility Analysis Result: ============================================= Rejected product "TeamSite" - Windows NT (unknown) 6.1 is not supported.

TS 7.2.1 according to the release notes is supported on 2008 64 bit.

I might be stuck. What are my options for getting the backing store moved over and up and running on the 2008 64 bit OS?

I would assume that I can't just move the 6.7.2 store over to the new server with a fresh install of 7.2.1.