Dear Scared,
I think this is a decision that needs to come from your husband. As Smoke said, it is their commitment to quit, not someone forcing them to, that's going to work. Do support him. Has he started going to daily AA meetings? Hopefully there he can find some answers or some guidance. It really has to be what he wants to do, what he believes he can do. Tell him you trust his judgment and support him either way (even if you don't). If he messes up, well, he can always start over again, right? His recognition of the problem and a willingness to do something is a good sign. Are you two still seeing the counselor? Sometimes decisions aren't quickly made. Step back, support him, and maybe in a few days or a week or so, he will have decided on a course to take. Keep us posted!