Problem with Visual Quickstart Guide

Problem with Visual Quickstart Guide

I'm working thru the jQuery Visual Quickstart Guide by Peachpit Press.  I got to chapter 9, which deals with Widgets, and I'm stuck.

I copied the links to the the jQuery UI codes, but the accordion plugin is not working

<link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" />

<script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script>

<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script>

<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.accordion.js"></script>

<script type="text/javascript">
    $(document).ready(function(){
        $("#accordion").accordion();
                               });
</script>

Any help would be necessary.