What lens are you using?
Basically, you can change your camera settings all you want, but if you don't have a fast lens you won't be able to take the shots.
For starters, let me recommend to you the Canon 50mm f1.8 lens. It's a pretty cheap lens, but it's also one of the sharpest and very fast as well. Buy this lens, and try to take some shots without flash. You might want to shoot in Aperture priority mode so you can set the aperture to f1.8, which allows more light into the lens and faster shutter speeds, reducing the blurry shots.
One last thing, since you are going to be shooting in aperture priority mode, make sure you also set a high ISO. I would say at least 800 or 1600. You can even try to set a high ISO with your current lens and you'll get better shots (not blurry).
I hope that helps,
I have a Canon 20D and take basketball pictures. I use a monopod and an external flash but a good percentage of my shots are blurring. I have it set on auto. Actually I would love to be able to take them without the flash but have tried and nothing but blur. Is there a good manual setting that I could try with or without flash to hopefully get sharper images. thanks, betlou