Many sites I have found have suggested that IE may be caching your code and suggest to append the code to
$("#home").click(function(e) {
$(".tabs").attr("src","tabs-home.gif");
$(".islice").hide('fast');
$(".islice").load("home.html?" + new Date().getTime() );
$(".islice").show('fast');
e.preventDefault();
});
This should ensure that a IE isn’t caching.
See http://zacster.blogspot.com/2008/10/jquery-ie7-load-url-problem.html for more info.