Hi Tallest Silk,
can you explain this a bit cos I don't really understand. In Vista you don't unsinstall an application by dragging the icon to the trash. Why it shouldn't be possible to unionstall an application from within Vista ?
What I was saying is, because Vista will reinstall Microsoft programs if you uninstall them, open your Vista partition when you're booted in OS X and drag the Vista applications to the OS X Trash and delete.
Booting back into Vista, the apps won't be there anymore.