The Sony video cameras will not work with the IMAQ for IEEE-1394 drivers. The format that the video camera sends is compressed and is not compatible.
You might have luck with some other methods, though. I think Irene He's IVision toolkit provides a method for video input from devices such as internet cams or video cameras using VFW. There are one or two other methods out there, also. I haven't needed to use a Sony camera, so I haven't tested any of these.
Bruce
Bruce Ammons
Ammons Engineering