Tipper, I went back and read some of your earlier posts. It seems your H has been having trouble for some time...and he is pretty young. I originally believed my H was in MLC, but he turned around pretty quick...although when I read about it I still believe that is what it was/is.
How long has your H had a drinking problem? I think you should tell him what is going to have to happen for him to come back. If he wants to come back then he will have to put forth the effort. Tell him it will take time and openness for you to be able to trust him again. I am sure you have told him these things...but stick to it. If you don't feel comfortable with him yet then I would suggest that he doesn't stay the night.
I do think you have to move slow and be friends first. I think that is when the trust starts to come back. I don't think we should just jump back into the relationship. You also have to decide if you will be able to trust him and forgive him. It can't be something that you hang over his head or bring up everytime something goes wrong.