Acehood I would highly reccommend you check out the NA equivelant of Alanon, also go to
Friends and Family of Substance Abusers - SoberRecovery : Alcoholism Drug Addiction Help and Information They can help you to establish what they call boundaries with your family.
I am an alcoholic and in AA, there are a lot of AA folks that go to Alanon as well to learn how to deal with friends and family who are alcoholics.
In regards to your staying clean, it sounds as though you have the support of your husband and trust me, your daughter as well, keep going to the NA meetings and if there is a lack of them in your area go to Open AA meetings to fill in the gaps. I can tell you for me the key to my sobriety has been getting a sponsor and taking the steps along with meetings and helping other alcoholics. My experience is that getting a sponsor and taking the steps is the primary key.