Opts, this seems like a fantastic blog of your progress and possibly gives others preparing a right kick up the ar*e with their revision... no idea who!
Keep going with your fitness and you will get there - I have my OASC Board booked mid August and completed a 1.5 mile run in 8:40 today with 45 sit-ups and 35 press ups, strange as I normally do better with press ups but have been working on my abs quite a lot recently.
On the current affairs side of things, it certainly seems like you are very clued up and will perform well in that part of the interview.
Good luck, and I look forward to keeping up to date with this blog.