Re most recent Bitinstant problems and Gareth's suggestion that they contact ZipZap:

I did and here is the prompt, professional reply from ZipZap on my transaction:

"Mar 02 07:03 (PST)

We are sorry for the delay in processing but you will need to contact BitInstant directly to get it resolved. ZipZap received payment confirmation and sent payment notification to BitInstant. Even though the BitInstant site is unavailable for new orders, they have assured us that payments are being processed."

BitInstant support is nonexistent.