I was able to download the video with Replay Media Catcher (RMC), so the RTMP video stream doesn't use SWF verification. This means that you can provide less parameters to rtmpdump. You can also try rtmpdump 1.9.

If you don't want to use commercial software like RMC and Jaksta, you can try freeware Orbit Downloader and Grab Pro, CooJah + Blader, TubeMaster++. The latter program didn't work for me.