Thank you all for your comments. I am still of the view that AA has the tendency to view addicts as having 'done wrong'. I do agree that an inspection of one's character and personality - an inventory if you like - to explore why one might be prone to addiction is an excellent idea and one I will be pursuing via one or more of the links kindly suggested above.
My local AA group is very relaxed in terms of outlook and I think it will be possible to use Step 4 in this sort of way. Thanks again all.