I want to use a YouTube playlist to populate the JW Player Playlist. I read the "YouTube Playlist 2009" post entirely and it appears in there that people got this working and I did exactly that, but I'm still not getting the player to actually play. Anyone have any ideas why not?
Here is my code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<script type="text/javascript" src="http://www.salivatestkitsstore.com/_embed/jwplayer/swfobject.js"></script>
</head>
<body>
<div id="player" class="player"><a href="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash">Get the Adobe Flash Player to see this video.</a></div>
<script type="text/javascript">
var so = new SWFObject('http://www.salivatestkitsstore.com/_embed/jwplayer/player-viral.swf', 'mpl', '640', '640', '9.0.124');
so.addParam('allowscriptaccess','always');
so.addParam('allowfullscreen','true');
so.addParam('allownetworking','all');
so.addParam('wmode','opaque');
so.addVariable('backcolor','EEEEEE');
so.addVariable('frontcolor','4C4C4C');
so.addVariable('lightcolor','4787AE');
so.addVariable('screencolor','FFFFFF');
//...playlist
so.addVariable('file','http://gdata.youtube.com/feeds/api/playlists/AF56839CD71C6069');
so.addVariable('playlist','bottom');
so.addVariable('playlistsize', '200');
so.addVariable('stretching','exactfit');
so.write('player');
</script>
</body>
</html>
The playlist loads up fine, but none of the videos will play. I just get the spinning bar. Anyone have any ideas?

You are probably missing the YouTube proxy yt.swf, which must be placed in the same directory as the Flash movie.
yt.swf is available here if you need it. http://developer.longtailvideo.com/trac/browser/trunk/as3