dkv01,
выкинуть строки 41 - 46
<script type="text/javascript" src="../../js_css/jquery-1.4.3.min.js"></script>
<!-- <script>!window.jQuery && document.write('<script src="../../js_css/jquery-1.4.3.min.js"><\/script>');</script>
<script type="text/javascript" src="../../js_css/fancybox/jquery.mousewheel-3.0.4.pack.js"></script> -->
<script type="text/javascript" src="../../js_css/fancybox/jquery.fancybox-1.3.4.pack.js"></script>
<link rel="stylesheet" type="text/css" href="js_css/fancybox/jquery.fancybox-1.3.4.css" media="screen" />
заменить на
<script type='text/javascript' src="https://cdnjs.cloudflare.com/ajax/libs/fancybox/2.1.5/jquery.fancybox.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/fancybox/2.1.5/jquery.fancybox.css">
остальное тут
http://fancyapps.com/fancybox/
https://cdnjs.com/libraries/fancybox