Virtualization

CSS has a solution for running IE7 and IE8 on XP as well as running IE6 on Windows 7 all using Microsoft App-V Technology and NOT Med-V. However this solution is not supported by Microsoft and only is supported by CSS

You can contact them at 877-715-5448

http://www.css-security.com/contactus.html


UPDATE:
CSS has release a Virtual IE6 running on all Windows platforms including Windows 7 using App-V

http://www.youtube.com/watch?v=3cccFGXORmE