Screen not responding after replacement

I just purchased a new black IPhone 5 Screen from here. (The one that comes with everything already on it)

I did all the steps it asked me to do...

1) Unscrew the bottom two screws

2) Take the screen off

3) Take the silver part protecting the cables for the screen

4) Unplug the cables off of the screen

5) Put the new screen back on.

I carefully put the new screen back on and there was bunch of white bars and red and blue lines, so I took and off and tried it again. I've tried turning off the phone and doing the home button + power button turn off.

The screen is not responding. The touch isn't working. Everything but the touch screen is working. I can use the home button, etc.,