Flash Mp3 Player giving "Undefined" error

Hello,
I have a functioning mp3 player which works fine on my computer but when I upload it to the server it stops working and gives me the “undefined” error where the artists name should be. It also doesn’t play the mp3. The directories on my computer and the server are exactly the same. The funny thing is when I link directly to the swf it plays the mp3s and shows the artists text. Any help would be greatly appreciated. Could it be the javascript SWFObject?

Site: http://www.3sonsproductions.com/v2

Direct link to SWF: http://www.3sonsproductions.com/v2/swf/3sons_Nav_01.swf

The code in the index.html that calls the swf.

<div id="nav">
		 You need the flash plug-in version 8 or higher. <a href="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" 		target="_blank">Click here</a> to download it now!
	<script type="text/javascript">
	   var so = new SWFObject("swf/3sons_Nav_01.swf", "Nav", "950", "150", "8", "#FFFFFF");
	   so.write("nav");
	</script>
	</div>