TypeMock on Vista RC1

I was wondering if anyone has had any luck getting TypeMock
(www.typemock.net) installed on Vista RC1. VS2005 has been running great but
I tried installing TypeMock recently and it didn't finish. The status bar
got about 3/4 across and then a message popped up that says "TypeMock 3.5.2
Setup Wizard ended prematurely because of an error. Your system has not been
modified. To install this program at a later time, run Setup Wizard again.
Click the Finish button to exit the setup wizard."

I'm not sure what the problem is. I looked through the event log but didn't
see anything listed. So far this is the only issue I've run into with RC1.

I posted a message in the community forum at typemock.com over the weekend
but no one has responded yet. If anyone has any suggestions, I would
appreciate them.

Thanks
Terry