The JW Player support said that there we should be able to play that video and gave me this link to try it.
Of course I tried your video by myself before contact them, is the second video on http://www.flairvideo.net/test, but I saw that it stops after about 10 seconds every time, that’s why I asked help to them.
The response is that everything is ok, probably my connection is too slow for that, nothing more.
Please, try to test the video at the first link and check if you can see it at the second, where I used my plugin.
Please let me have a feedback, ok?