call Nintendo or visit www.support .Nintendo.com their number is 1-800-255-3700. They are open 6am-7pm western time. Ask about getting an exsisting repair. If you are really in trouble you could...
first, u have to take all the ds chips out. go to the start page, look at the bottom one, click the middle one. then there is gonna be 4 icons. u click the last icon (yellow one) and you have touch...
you can go to your local hardware store home depot or what ever is close and they sell screen and this rubbery string type stuff once you get that its easier to start at the top over lap the screen...