I'm using one of these with this command:
mjpg_streamer -i "input_uvc.so -r 800x600 -f 60 -d /dev/video0" -o "output_http.so -p 8080 -w /www/webcam"
Once I found the right command it was really simple. Also I found that the Omega has a much better streaming frame rate and less delay than when I was using the same camera with my Raspberry Pi.