On order to run faster, first you have to ensure that your turnover has been increased. Use your big toe as the spring board of your body and ensure that when running, your arms are moving forward and your chin should be tucked. Check out http://www.ehow.com/how_2034733_run-rabbit-tortoise.html for more information.
I would recommend you work in training intervals. Start by sprinting on a treadmill for a minute then slow down for a minute. Continue this until you have worked up the stamina to sprint in longer intervals.
I was in track without any knowledge that running had a strategy and now I'm a lineman about to go into JV football got 2 seconds faster from 14.5 to 12.5 seconds in a 100 meter dash! So try track! I was a sprinter by the way