I am implementing jQuery's tablesorter, but the arrows can't seem to show.

Here is what I've done so far:

<script type="text/javascript" src="/path/to/jquery-latest.js"></script> 
<script type="text/javascript" src="/path/to/jquery.tablesorter.js"></script>

and 

$(document).ready(function() 
    { 
        $("#myTable").tablesorter(); 
    } 
);

The table sorts fine but the arrows don't show. Am I missing something here?
I even added the following but didn' work: 

<LINK rel="StyleSheet" type="text/css" href="../tablesorter/themes/green/style.css">
jquery tablesorter
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