I wish I would have come here before making my own transaction today.  Seems that something is going on over there, because like someone said earlier, this is fairly unusual.  Same problem for me it appears with a confirmation email coming from ZipZap, but nothing from BitInstant.  I did manage to trade emails with one of their support staff though, who said that he'd have to forward my order to their Tech Support, who will supposedly manually transfer my outstanding funds.  He mentioned it would take a day, which I was initially quite irritated with, but after reading some of y'alls horror stories, I'll take it.