I know its's to do with the amount of light(i think) but can
someone tell me how to get light shots at a high shutter speed as i
want to take soccer pics in the summer. Thanks in anticipation
Ummm, if there isn't enough light, you will get dark shots. You can try boosting the ISO up as far as it will go (ISO 400 in most Olympus cameras), and if there is enough light, deal with the noise.
Some 'solutions' include (not all are serious):
1) Have your teams play at high noon, only on sunny days.
2) Rent a couple of high output lights like they use on movie sets and a possibly a generator to power it (or very long extension cords).
3) Convince your town to light the stadium properly.
4) Use a high powered flash, and deal with the recharging time (and possibily whether you can achieve a focus lock if the light is low). Note depending on your camera, you might need to use a slower shutter speed like 1/200.
5) If you need a faster recharge period, and/or are going to go snap happy, get a couple of Alien Bees and a Vagabond battery system (or the long extension cord once again). However if your camera has a slower flash sync rate (most DSLRs) there isn't much you can do about it.
6) Get a DSLR that can do ISO 1600, and get some appropriate f/1.4 or f/1.8 prime lenses and deal with not being able to zoom in/out with primes. Depending on when the games are held, even this may not be able to record at the speed you want.