JWPlayer Skin will not load in Drupal 6

Hi, I've got JWPlayer running on our site - we use Drupal for content management. I'm not using the module, just embedding into the page.

Everything is working great, but I can't get any skins to work on the player. I've tried multiple skins, putting the skins in different folders ,etc, and nothing seems to work.

Here is the page with the player:

http://www.ctl.uga.edu/CTLcable

and here's the code being used:

<script type='text/javascript' src='http://UniversityofGeorgiaAthens.http.internapcdn.net/UniversityofGeorgiaAthens/jwplayer58/jwplayer.js'></script>
<div id="mediaplayer">
 </div>
<script type="text/javascript">
jwplayer('mediaplayer').setup({
'id': 'playerID',
'width': '480',
'height': '360',
'modes': [
{type: 'flash', src: 'http://UniversityofGeorgiaAthens.http.internapcdn.net/UniversityofGeorgiaAthens/jwplayer58/player.swf',
config:{
'streamer': 'rtmp://UniversityofGeorgiaAthens.flash.internapcdn.net/UniversityofGeorgiaAthens/live_1',
'provider': 'rtmp',

'file': 'CTLcable',

'rtmp.subscribe': 'true',
'skin': 'http://www.ctl.uga.edu/glow.zip'
}
},
{type: 'html5',
config:{
levels: [ {'file':
'http://UniversityofGeorgiaAthens.ios.internapcdn.net/UniversityofGeorgiaAthens/live_1/CTLcable/CTLcable.m3u8' } ],
'provider': 'video'
}
}
]
});
</script>

thank you so much for any help.