I need by bow tuned, but i really dont know what u meaned by you people tell me i need my bow tuned. What is it that you do and what can i do?

http://www.eastonarchery.com/downloads/download the tuning guide.

Very nicely done Urban.

However, Ridgerunner, take the Easton manual with a grain of salt. You do not have to do every test that it suggests in order to get a good tune out of your bow.

Hereis how I tune my bow. I first get my center shot and nocking point adjusted close by eye. I then sightin my bow for field points out to 50 yards. Then I take a field point tipped arrow and a broadhead tipped arrow and start at 5 yards. I shoot the field point arrow, and then I shoot the broadhead arrow at the same spot. I adjust the rest for left or right to bring the broadhead tipped arrow with the field point tipped. I do the same for height, except I move the nocking point. I do this out to 50 yards or so. When you get to 20 or 30 yards, you may need to readjust your sight to bring both arrows into the spot.

That'll do it.
The Easton guide is a great place to read about the different types of tuning, how they are done, and why the arrows behave differently as you make changes to your setup. There are also many websites that discuss one or more methods.

For bowhunting, the fastest way to get tuned up is broadhead tuning like Josh does.

I start with paper as a rough tune (because I can do it in my basement), and then go to broadheads once I get my sights set for 20, 30, and 40 yards. Start shooting broadheads pretty close in, like 10 or 15 yards. They can plane pretty badly when things aren't tuned right. If you start by hitting a 30 yard hay bale target in the middle with field points, you may completely miss the bale with a broadhead.

When tuning, avoid shooting when there is a breeze. Do it under ideal, calm conditions so you get true results. Even a slight breeze can mess with arrows. Tryshooting in the wind a few timesafter you get dialed in. It's an eye opener.

http://www.broadheadtests.com/TUNING.html