By camera address do you mean what port it is physically plugged into on the roboRIO? In other words, does the the USB camera have to be plugged into a certain USB port on the roboRIO? I believe in my code the name for the camera is just "Camera". I don't have access to check right now, but i believe when connected to the roboRIO over USB it doesn't list the USB camera's name as "Camera". Here is a screenshot of the code I am using.
http://s1341.photobucket.com/user/ts...tml?sort=3&o=0