here are some of the other threads
http://forum.bitcoin.org/index.php?topic=15984.msg209464#msg209464
http://forum.bitcoin.org/index.php?topic=15998.msg209561#msg209561

no money sent from that address yet.
That's a large chunk that MtGox can keep without having to use to fulfill the orders of people buying BTC. Is there something I'm not understanding?