Currently im using this script in my header.

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0a1/jquery.mobile-1.0a1.min.css" /> <script src="http://code.jquery.com/jquery-1.4.3.min.js"></script> <script src="http://code.jquery.com/mobile/1.0a1/jquery.mobile-1.0a1.min.js"></script>

when i use this in my header it works fine, however popups dont work. So i decided i should try to upgrade,. once i update then all my listviews get truncated and other elements like grids no longer float. please view attached image to help understand what i mean. Maybe somebody can help me with  fix.

kind regards