According to early Lucas approved information (from Star Wars Gamer) the Anzati know of the force, but do not recognize it as any more correct then a dozen other belief structures that came before. They do not utilize the Force, persey, but they do enjoy making a meal of Force Users where possible. It's all about the Luck/Soup.
The quote I recall from that issue of SWG reads; "We remember the first Sith."
But then came the Republic series (published by Dark Horse) in which they totally fucked the mystique of the Anzati over and turned them into just another bloody dumb fucking alien species that sides with the wrong party during the Clone Wars.
I'm a freakin' Encylopedia on the fekkers. Serious.