Hi there
Your best and perhaps only bet is to write to each unit individually enquiring about vacancies etc as recruitment is done that way - as opposed to centrally.
Not good news if you want to come to MACC - you've just missed a whole host of boards.
Most recruitment is also done internally for NATS posts.
Try also writing to the college down in Bournemouth and to the trainign department at LACC - both have massive ATSA1 intakes in their respective training departments.