jquery ui tabs not loading in ie8

Hi there, I am able to view the jquery tabs fine in Firefox but I don't see any content in IE 8. please help!

<link type="text/css" href="css_folder_here/themes/base/jquery.ui.all.css" rel="stylesheet" />

<script type="text/javascript" src="js_folder_here/jquery-1.4.2.min.js"></script>

<script type="text/javascript" src="js_folder_here/ui/jquery.ui.core.js"></script>

<script type="text/javascript" src="js_folder_here/ui/jquery.ui.widget.js"></script>

<script type="text/javascript" src="js_folder_here/ui/jquery.ui.tabs.js"></script>

<link type="text/css" href="css_folder_here/demos.css" rel="stylesheet" />

<script language="javascript">

$(document).ready( function(){

$("#MyTabLayout").tabs();

});

</script>

<div id="MyTabLayout">

<ul>

<li><a href="link1.cfm">Link 2/a></li>

<li><a href = "link2.cfm">Link 2</a></li>

</ul>

</div>