I am also waiting on an InstaWallet claim.

I did accept my claim, though I was a bit late to do so since I was never notified that I needed to, and because accessing the instawallet.com domain without the www stopped working so every time I tried to check on my wallet it looked to me like Instawallet had gone offline.

It now shows my status as PENDING_PAYMENT.

I message Boussac a couple days ago, so hopefully he responds.