It's quite strange that the OP doesn't even try to establish a dialogue with the community, and today he was active:
Last Active: Today at 01:36:59 PM
Maybe he has no time now, because in this thread @TwitchySeal has seriously undermined the credibility of BetABit.Casino games by stating that are not provably fair:
Thread:
https://bitcointalk.org/index.php?topic=5369598.0Betabit.casino (
forum thread)
Video Poker: Server Secret determines the order of the cards. Server/Client hash determines where to cut the deck.
Don't see an explanation on their site, you have to verify a bet to figure out how it works.