Not an expert but I would say rest it as much as you can before the RFL, you sound fit enough to be able to get round without much of a problem. A hot water bottle increases bloodflow to the area and an pack reduces the swelling.
In the meantime how about going swimming or using the gym to exercise the non-injured leg muscles. If you push yourself on an injury, as I did previous Sunday, then it takes much longer to recover.
Any exercise is going to be harder to start with and then gets easier as the muscles develop, hills are harder still. Contrary to popular believe you cannot target to lose a particular area of flab but muscles burn energy even when not doing anything much else. I would say try and develop muscles by varying your routine, don't like your gym - try another, I used to do sit ups and press ups when I was falling asleep at my books. Sticking my neck out I would say you should not lose weight have a look at www.nhsdirect.nhs.uk/magazine/interactive/bmi/index.aspx - good luck.
Am I being obtuse here but why would they? I do not remember seeing race entries restricted to so many men / so many women, if they won a prize then that is fraud and surely not worth risking a criminal record. That only leaves because they think it funny, which it isn't.
I might be part of the reason why the prize winners might not collect their prizes. Organisers wait until most have finshed but by the time I finish they could have showered, dressed had lunch and a kip.
Have you seen this? www.runnersworld.co.uk/news/article.asp?UAN=481
Many years ago I had my feet measured by a machine in Sweatshop after getting loads of blisters, it worked. Not sure that they still do that, no mention of it on their site that I can see and no shops in Wales. Think experts can tell from your shoes how you run so if you visit a shop take your old shoes with you.