Select persons.first_names, persons.last_name, persons.person_id , jb_screens.im_screen_name from jb_screens, persons where persons.person_id = jb_screens.user_id and jb_screens.service = 'jabber' and persons.person_id != :user_id and jb_screens.screen_id not in (Select friend_screen_id from jb_friends where user_id = :user_id)