I thought I had a copy but that is for children's services which I imagine is different, a quick google uncovered the above link that may help. If not I suggest google scholar and type in attachment style interview. HTH
Friends in my prep group had this. They were interviewed separately and asked about their childhood, lots of questions trying to guage what their experiences of attachment had been. I don't know any more than that but am seeing some of them at the weekend so can ask for further details if you like.