Adlerian psychotherapy does not use a "cook book" approach for specific personality disorders. The essential tasks, for all disorders, are: reducing the client's inferiority feeling; modifying, then dissoloving his fictional final goal and style of life; and increasing his feeling of community. The technique of treatment depends on the unique goal and style of life of the client, not on the category of disorder. Consequently, Adlerian psychotherapy requires creative innovation for each client. (Getting a client to accept/acknowledge his "basic mistakes" sounds more like a Dreikursian approach to treatment.)
For more information, check Stages of Classical Adlerian Psychotherapy at http://ourworld.compuserve.com/homepages/hstein/stages2.htm and Classical Adlerian Theory and Practice at http://ourworld.compuserve.com/homepages/hstein/theoprac.htm .