Select pe.person_id , pe.first_names , pe.last_name from persons pe, group_approved_member_map grm , jb_screens js where grm.group_id = :group_id and pe.person_id = grm.member_id and pe.person_id = js.user_id and js.service = 'jabber' and pe.person_id != :user_id and js.screen_id not in (Select friend_screen_id from jb_friends where user_id = :user_id)