Seems to be the same for me as well, I have send them 150 to 200 visitors that have downloadet approx. 20 times and nothing, but I must say this is not the only one. Now as I have had my few portals online for little over two months I have send traffic to many different casinos like these:
casino: hits: downloads: regs: money:
CasinoRewards 200 20-25 5 0
ProfitShare 250 3-4 2 0
Integrity 250 3-4 2 0
CasinoCoins 200 15 7 0
BingoHall 650 30 – 0
Not very encouraging numbers – Eyh? 
I think I will be dropping programs as flyes – very soon. In this mix I have a few other programs that do not make money yet, but the traffic to those have been even less. The ones that have converted thus far are CasinoPartners, ReferBack, GF, Adriches and CasinoBlasters.
Ps. Any take on CasinoPays? Carnival and ClubDice to be more exact.