Bob,
I can't get it to play in JetAudio, followed your directions. :'(
I followed the same directions and it's working here:
I'm using 7.0.5 Basic, are you using Basic or Plus? Does it matter if you have WMP 10 or 11? I have 10.
I have WMA checked in JetAudio file type association. Still won't play SonLife Radio.
I have no trouble playing it in RealPlayer.