Sorry, can't test it at my end without starting an account. For what it is worth I have briefly used pokerstars, which worked pretty flawlessly under wine. Couldn't make me a better poker player. Also if you search the wine app database for poker there seems to be lots to choose from that are rated gold or better. Did not see Fortune Poker on the list at all.
Oh, and there is PokerTH in the repositories now. Just for practice.