I'm in the same boat - just moved to Windows 7 64 bits.  Lots of new things to learn.  I only installed Vue 7 and 8.   I'm still in the middle of sorting through my content and see how and where I want to organize it.

I'll try to dig out my copy of Vue 6 and install that one too.   Don't forget to right-click on the exe and select Run as Administrator. 

There is also a compatibility setting for older programs.   

To change compatibility settings manually for a program, right-click the program icon, click Properties, and then click the Compatibility tab.

LVS - Where Learning is Fun!  
http://www.lvsonline.com/index.html