In a previous article I mentioned how to integrate VS 2008 with Subversion for free using a few settings and a script. (go read the previous article to get all the code).
When I run the script in Windows 7 all the menu items were grey out. The problem was that the script use the variable PROGRAMFILES. For whatever reason in Windows 7 this doesn’t work and you have to replace with the hard coded path C:Program files and them everything works.
I guess that you should be able to do the changes in the vb script file before running it.