Bridge,
Don't get too upset: a weak accept is an accept. It may be that someone better comes along - but maybe not. You have shown that you are suitable to go to OASC. In the meantime, there is little else you can do but wait and hope that you are finally selected to go to part 2. By the way, the OASC reports are often quite critical - they do not often point out your good traits; only the ones that you need to work on: as you might expect!
Good luck.
Duncs