Actually, that looks like a device driver. Not sure what Lenovo shipped on their final image vs. the Drew one - I'm not seeing any additional software listed. I thought there was a simple Vista application that would work - I know Windows XP at home can see the webcam we use and access it even without launching additional applications.
I've got a university-owned T400 at work that I've been using to test software deployments and updates under Vista. Other than an updated Novell client and Zenworks agent, it's pretty much a stock configuration at the moment. If I have time tomorrow, I'll take a look at the camera support.