[jQuery] Overlay not working on jquery-ui-personalized-1.6rc6.min.js

[jQuery] Overlay not working on jquery-ui-personalized-1.6rc6.min.js


This is my code:
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<script language="javascript" type="text/javascript" src="/js/
jquery-1.3.2.min.js"></script>
<script language="javascript" type="text/javascript" src="/js/
jquery-ui-personalized-1.6rc6.min.js"></script>
    <script language="javascript" type="text/javascript">
        $(function(){
            /* Modal Dialog Box Configuration */
            $("#addproductsForm").dialog({
                bgiframe: true,
                autoOpen: true,
                modal: true,
                overlay: {
                    backgroundColor: "#000",
                    opacity: 0.5
                },
                position: "center",
                dialogClass: "insertForm",
                closeable: false
            });
        });
    </script>
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The funny thing is if i downgrade the jquery and UI files to versions
1.2.6 and 1.5.3 respectively, the overlay works but IE throws a
javascript error. Thanks a lot.