Problem running Flash 8 Video Encoder in Vista

I get the following error when I try to run the Flash 8 Video Encoder on my new Vista machine…

“Failed to install ISKernel Files. Make sure you have appropropaite privileges on this machine.”

Any ideas? I am running as administrator with full priveleges.

Or does “Flash 8 Video Encoder” not work on Vista? Have anyone been able to run that on Vista?