I just bought a new bmx and i a newbie so i dont know the terms. I have a problem from my gyro brakes down. It twists very easily so the handle barz go unaligned from the wheel. i am not sure if its a bolt or a screw that needs to be tightened so if any1 that can tell me if it needs to be tightened can u also tell me where the screw would be?? thx alot.

Are you saying that the handlebar moves will move so that it is not square to the front wheel? Since this is a new bike I would take it back to the shop. Get them to adjust it. It is not that hard to do, and I had actually written instructions. Then I realized that if you have a threadless headset it may need adjusting, and, no offense, you probably shouldn't do it yourself. Don't ride it this way since it could mess something up.

Dito what RainmanP said, take it back to the shop and have them adjust it for you. Also, watch how they do it so you can do it if you ever need to again.