I think he had the same issue as i did for your second demo. there is no way to move the camera (that we couldfind?) so it just looked like a rendered image (possibly a good credit to your fx programming?)
If you are talking about the development kit which was previously available then yes, the intro scene didn't feature a moving camera, it was just a kind of a placeholder there, an example to get people started? I guess it wasn't a that good idea then... The current dev kit has the Demo 1 as the intro scene.
I know the gpu is a geforce 9800 GTX+ that is a little underclocked because I still need to buy a third fan power connector for it (it needs 3 of them!) , but it should run it pretty well.
The demos should run more than fine on that card. I'm not sure but sometimes you don't get the full framerate that the card offers because of power management, the card might detect that the work being done atm isn't that intensive for it and slow itself down a bit.
