jQuery LOAD Issues with IE

jQuery LOAD Issues with IE

I am struggling with ajax load in Internet Explorer.  It works in all of the other browsers I have tried.

Have a look at:

http://www.creativelunch.com/atesore/user/profile/rwap_software

When the ajax.load function is called to load the Active Items content, I get an IE error:
Line: 307642184
Error: Not implemented

The code used to load this page is quite simple:
//show loading bar
function showLoading(activeTab){
    $('#loading-' + activeTab)
    .css({visibility : "visible"})
    .css({opacity : "1"})
    .css({display : "block"})
    .css({height : "15px" });
}
//hide loading bar
function hideLoading(activeTab){
    $('#loading-' + activeTab).find("img")
    .fadeTo(1000, 0); // Fix for internet explorer to ensure the loading icon disappears also
    $('#loading-' + activeTab)
    .fadeTo(1000, 0)
    .css({height:"0px"});   
}
function loadContent(tab){
    $(tab).addClass("active"); //Add "active" class to selected tab
    $(".userContent").hide(); //Hide all tab content
    var activeTag = $(tab).find("a").attr("href"); //Find the rel attribute value to identify the active tag content
    var tag_history_array = activeTag.split('-');
    var activeTab=tag_history_array[0].substr(1);
    var AjaxPage = $(tab).find("a").attr("rel"); //Find the rel attribute value to identify the active tag content
    showLoading(activeTab);
    $(activeTag).empty();
    $(activeTag).load(AjaxPage, hideLoading(activeTab));
    $(activeTag).fadeIn(); //Fade in the active content
}


The page still works to some extent, except if you click on Not Sold on the left hand side - nothing is displayed (although this works in other browsers).

http://www.rwapservices.co.uk