i just got a camcorder that supports video streaming as well (sony din)... as soon as i figure it out... i'll let you know... when I tried playing around with capturing video and stills... I had to select which setting I wanted first...
i.e.
If I want to get stills or mpg from the camera (using the USB 2.0 Cable)... I had to switch to the MEMORY setting first... When I had to capture video (using a Firewire cable)... I had to switch to VCR mode then start capturing...
I guess... if you wanna use video streaming... you'd have to use the MEMORY Setting... and use the USB cable to capture the live stream... not totally sure... but i'll find out for you ASAP