The screen that appears after the splash screen?

♥ is how u do it i hope i helped :)

That depends on the specific cause. Sometimes it's possible.

I staple it then add fur stripes and molding to hide the cut.

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...

Yes you can order a new screen but this is usually very expensive. Replacement screens can sometimes cost close the the price of a new flat screen, sometimes even more.