Wansview NCB543W with Vera?

I just got a Wansview NCB543W IR web cam. I can grab single frames in a browser window using http://192.168.n.n/snapshot.cgi. But when I use the UI4 Wizard to add this camera to my Vera 2 using that URL, it doesn’t bring up the image. There’s a Fosgate camera in the Wiki which is basically the same thing that supposedly uses this URL and works. But I just can’t get this one to load up. Any ideas?

Someone asked a similar question here a year ago but got no replies.