Thank you very much Hess963,
I appreciate you taking the time to reply to my question. It is a shame that there is such a difference for UK residents and also that the actual number of points required is hidden in the small print and not immediately obvious.
Given the information you have given me i think it unlikely that I will bother as I am not prepared to risk loosing my Platinum status in Skyteam just to try and gain Gold in BA/Oneworld.
I wonder why they operate this system as in my home program you can progress all the way to platinum in a year as long as you do the number of miles or sectors required.
Unfortunately another reason not to fly BA as opposed to being encouraged to fly with them.