You can use VRPN to stream data from iView ETG to Vizard. The 
SMI downloads page has a link for a VRPN server. In Vizard, use code like the following to get a handle to the trackers:
	Code:
	vrpn = viz.add('vrpn7.dle')
tracker = vrpn.addTracker('SmiETG@machine_name:4444', 0)
trackerR = vrpn.addTracker('SmiETG@machine_name:4444', 1)