One of the biggest problems beginning runners have is they go way too fast. Your cardio will improve much faster than your body, so too avoid injury go slow, both with increasing you mileage and your speed during a run. If you are not able to have a normal conversation then you are running too fast. I normally take an MP3 player and sing, quietly to myself. When I feel I am having a hard time maintaining my breath and singing, I know to slow down.
As a general rule do not increase your mileage by more than 10% per week. That will help to keep you from injuring yourself. You have 5 months that is a decent amount of time and you'd be surprised how much progress you will make, even if you go slow. I'd also suggest going to a site like coolrunning.com. Obviously, it is a running website and there are many people who are very knowledge hanging out and all too willing to give advice.
But when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new guards for their future security.
Translation for the intellectually challenged: If the government screws the people too much, it is the right and duty of the people to revolt and form a new government.