[jQuery] jquery sortable question

Hi,

I'm using the sortable plugin with JQuery 1.3.  After a list item has
been moved to a new place, how do you get the new list item position
-- i.e. it's now the 1st, 2nd, 3rd ... item in the list as opposed to
its position on the screen?

Here's how I'm declaring my sortable list ...

                        $("#sortable").sortable({
                                revert: true,
                                handle : '.adminPrinterHeader',
                                update : function (event, ui) {
                                        /* What goes here? */
                                }
                        });     //

Thanks, - Dave