Thumbnail Video Gallery Is Not Clickable Anymore

The following javascript on a simple webpage used to work.  It would display a thumbnail gallery at the bottom and when you click on a thumbnail, the corresponding video would play.  Now the mouse doesn't even change anymore when you hover over the thumbnails and clicking on them doesn't do anything.  I'm not really a javascript coder, I just lifted this code from somewhere else years ago and it worked back then.  Let me know if you need any other info.  

 
    <script src="javascript/jquery.1.4.js" type="text/javascript"></script>	
    <script src="javascript/scripts.js" type="text/javascript"></script>	
    <script src="http://cdn.jquerytools.org/1.2.0/jquery.tools.min.js"></script>

     <script>
            $(function() {
                var nowPlay="The Ops Family - Part 1";
                $("p").text(nowPlay);
                $(".scrollable").scrollable();            
                $(".items img").hover(function() {
                  $("p").text($(this).attr("title"));
                }, function() {
                  $("p").text(nowPlay);
                });
                $(".items img").click(function() {
                	// see if same thumb is being clicked
                	if ($(this).hasClass("active")) { return; }
                	nowPlay=$(this).attr("title")
                	var url = "video-files/"+nowPlay+".flv";
                	
                	LoadPlay(url,'flv')
                	
                	$(".items img").removeClass("active");
                	$(this).addClass("active");
                // when page loads simulate a "click" on the first image
                });
            });
        </script>

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