Its cool man a lot of people don't realize that the shutter speed has a lot to do with the blurriness of concert shots.
This is the camera I have: Kodak Z712 IS. I think it ran around $250 when I got it, so it wasn't too bad.
As you can see on the wheel it has quite a few settings. For concert shots if you have the (S) Function which stands for shutter priority it is best to use it as the shutter speed will be increased causing the camera to take the picture faster and capturing your target without as much blur.
If you don't have that function, you can select the (running man) That is the sport shot function and it is designed to catch objects in movement, therefore also elimination the blur or shakiness of pics.
I hope that helped out some, I'm sure you can look up your camera on google and find how to adjust your shutter speed.