I think I'm mostly just disappointed that this isn't working out. BitInstant should be able to make a killing even working as a legitimate business, as they appear to be by far the fastest and easiest way to get cash USD-->BTC (if it would work). I'm glad I ran a small-ish test transaction to see if it would work (it hasn't) before moving into a larger position in BTC (which I would love to do).
If you guys can get your stuff straightened out, I'd love to be a repeat customer many times over, but I'm not going to sit on here and keep reminding you about my missing money (because no one should have to do that).