If you want to reverse the order of the items in the cart so that recently added items show at the top, you can do this with a little bit of jQuery. Add the following code to your cart, checkout, and receipt templates.
<script type="text/javascript"> (function($) { $.fn.reverseOrder = function() { return this.each(function() { $(this).prependTo( $(this).parent() ); }); }; })(jQuery); $(function(){ $('table#fc_cart_table tr.fc_cart_item').reverseOrder(); }); </script>