Just be yourself and be honest. I had an interview on Friday and told the Dr. that I was a recovering alcoholic and he congratulated me on my sobriety. I don't know if I'll get the job but it's nice to know that there are people out there who are accepting of our disease.
^ the links to the other two articles Commuter wrote, are embedded in that, too.
that is just general interview advice, not specific to recovery topic in any way. If you have a specific question or something, maybe if you post it, someone would have a good suggestion of how to word things. good luck!!