iwmigrate to a new platform?

System

We have recently invested in new server hardware and are currently in the process of moving our Teamsite installation. I was always led to believe that IW had a tool for such a task iwmigrate.exe. Before using iwmigrate to move the backing store from our old windows server to the shiney new one i thought that I'd check the docs and forums and support site both to see how this was done.
KB Article #50601 suggests that on the original server you map up the iw-store of the new server and use that as the location for the iwmigrate command. But discussions on a forum thread suggested that this is unlikely to work.
Anyone out there done this succesfully? Otherwise I guess I'll just try it.
BTW I wish to migrate from 6.7.1 on Windows2000 to 6.7.1 on Windows2003.
All help much appreciated as always,
/Nick