It seems like I am in the same situation as others here..
Purchased $60 of bitcoins, got the confirmation email from ZipZap but nothing from Bitinstant. Obviously blockchain says no coins have been transferred..

Checking the quote ID on bitinstant gives this as the latest status: 'MTGox Order Loading'

Please help, lol.
Quote ID: 87dbe6e2-6a47-4dbd-a913-c26c49aa3ebd
Acct #: 724357306