jquery datatables default sort not working

It worked for me. Thanks.. Initially I was using 'order':[2,'desc'] which was not working..Correct option is aaSorting

eg;

$(document).ready(function() {
    $('#example1').DataTable({
        aaSorting: [[0, 'desc']]
    });
});

This should get you what you need

$(document).ready(function() {
    $(".table-sortable").dataTable({
        aaSorting: [[2, 'asc']],
        bPaginate: false,
        bFilter: false,
        bInfo: false,
        bSortable: true,
        bRetrieve: true,
        aoColumnDefs: [
            { "aTargets": [ 0 ], "bSortable": true },
            { "aTargets": [ 1 ], "bSortable": true },
            { "aTargets": [ 2 ], "bSortable": true },
            { "aTargets": [ 3 ], "bSortable": false }
        ]
    }); 
});

The key is the aaSorting option. For some reason it's not in his 'main' Usage pages... you can find it here though http://datatables.net/ref