Yep. 
This is something that will take time to implement, though, as Marvyn explained to me on the phone yesterday.
By the way, if anyone is interested, over here I have posted a list of programs that track by using sessions only. I also included a list of programs that use cookies.
Edit: Earlier in this thread, I said that “Jackpot City is the only Referback casino to track with sessions only; the other 3 track with cookies.” This is not correct. Actually they all use sessions. Cookies are “set” by 3 of the casinos, but the affiliate tag is overwritten if you close the browser and then type the casino URL directly into the address bar.