Well, I dont' have a whole lot of advice (welcome to SR, BTW!), but I say just sit back an listen for now. I wouldn't be in a hurry to get re-married, especially if he is still in jail. Let him get out and prove himself for a while. Marrying him in haste isn't the kind of support that will help him stay clean. He has to be able to stay clean on his own because he wants to.
And, if he IS in jail, I need to say something and I want you to know that I don't mean it to hurt you: Jailbirds all sing the same song while they are in the cage.
I hope things work out for you.