BetDirect was acquired by 32Red PLC a few months back. They have recently ( As of last week ) moved the BetDirect Poker Room onto MGS Prima Network and thus this enables you to promote it via 32Red Affiliates.
You will need to check with Lee or Kate regarding BetDirect Casino and Sportsbook and whether they will at some point be able to be promoted via 32Red Affiliates.
BetDirect Poker was previously on the International Poker Network.