Source SDK - Faceposer doesn't work on Windows 7?

I’ve been trying to get the faceposer to work and then I heard that the faceposer doesn’t work with Windows 7. Is this true? Can someone help me out?

[editline]3rd January 2013[/editline]

Sorry, I wasn’t very clear on what’s wrong with the faceposer. The Phoneme Editor is what doesn’t work, everything else is fine. Does anyone have a fix, solution or alternative?