Is it possible to import camera move data from, say, SynthEyes 2006 into Vegas 7 so that we could match the 3D compositing layers to other movement in the scene?

I imagine that this would be a kind of reverse calculations because of the camera in Vegas being fixed and that the background is the only thing moving. But, the goal is to have set extensions that move around properly as the camera moves through the live action footage. Perhaps I shouldn't be tring this in Vegas I'm not sure.