If you want to add the Sorting by the first column you will need to use something like this
$("#sample_1").dataTable({
"aaSorting" : [[0,"desc"]],
"bDestroy":true
});
Note: Using "bDestroy" it will replace your datatable with one with the new properties, so doing this will overwrite the previous configuration of the dataTable.
I think that the best solution is to look out where the datatable is created inside that TableAdvanced.init()
And add the parameter aaSorting to it
"aaSorting" : [[0,"desc"]]
This could work http://datatables.net/examples/basic_init/table_sorting.html