I came across this article on Dev Live for intergrating Virtual Earth with SharePoint 2007 lists. I've changed the mapcontrol script file to run with v6 rather than v4. It was a bit of b***h at times to get it run but I had to change the list to include longitude and latitude for the addresses I wanted mapped - but not big deal.
Progressing with the creation of a complete Internet MOSS site for April '08 and a demo to do before the end of December. The MOSS install is on a virtual machine it takes ages at times for things to run.