i think it did it right, i used the multi city package bit and created a trip - it gave me the choice of three parts, car, hotel and flight. Hotel booked for whole time.
looks like i get 220 tier points for flights so presume this will double with the offer - i have asked BA to confirm the double points apply.
Now to decide whether i need to book seats at £78 each to ensure i get a window.
Anyone know whether an upgrade is offered prior to departure?