No problem. I think there's been a class about every 2 weeks. Go back to around Mar 4th (last class) and then jump back how ever many pages it takes to skip about 2 weeks before that and that should help narrow the search. Keep in mind that it's usually at least a day or two before anyone posts the drop, so I guess the end of each of those weeks (Fri) would be the best place to start paging backwards.