Initially, I planned to use http://www.jplayer.org/, but I found that it does not support fullscreen under IE6. Support for IE6/7 in http://www.jwplayer.com/ is also less than ideal, so I ultimately decided to use http://flowplayer.org/!
Download links:
https://releases.flowplayer.org/5.4.6/flowplayer-5.4.6.zip
https://releases.flowplayer.org/flowplayer/flowplayer-3.2.18.zip
Here is a code example implementing an RTMP live stream:
The final result is as follows:
