It does appear to be an MJPEG camera, so that is a good indicator.
The easiest way for us to determine the correct JPEG or MJPEG URL for your camera's specific make and model is for us to connect to your camera with a temporary login and password and analyze the video stream. Do you know if your webcam is accessible from outside of your local network? If it is, then if you could set it up with a temporary login and password so that I might connect to it, we would appreciate it.
If you could e-mail the connection details to support@skjm.com we can go from there. Please include a reference to this support forum post and your forum user name in your e-mail.
Thanks!