My order expired too.  I sent BTC within a few minutes of generating the invoice, but it never registered as paying, even though the network found 11 blocks within that hour (go go gadget increasing hashrate).

I'm suspecting that their integration with Blockchain.info is still messed up.  They're generating Bitcoin addresses properly (which is a very easy thing to do and doesn't require awareness of the blockchain), but maybe they're still getting caught up on the blockchain and they're not registering incoming transactions properly?

Anyway, I'm sending a PM.

To everyone else, I wouldn't place an order until this is fixed.