I'm not able to bet.  I deposited 1BTC to 1FUYFiPw9zDJZ3iiawrPfehmmBtfSJMNYD, it shows up in my balance, but I put .1 in the box, put in my guess, and click Open and it just refreshes the page.  Never attempts to open the safe, and never shows an outcome.

Edit: I just put in to withdrawal my 1BTC back out until the bugs are ironed out.