Looking at your source code you have forgotten a step

Code:
    <!-- Google Analytics: change UA-XXXXX-X to be your site's ID. -->
<script>
    // var _gaq=[['_setAccount','UA-XXXXX-X'],['_trackPageview']];
    // (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
    // g.src='//www.google-analytics.com/ga.js';
    // s.parentNode.insertBefore(g,s)}(document,'script'));
</script>
You have forgotten to put your sites code in, in the third line