Did you click the links in the first post at the top of this page? More that likely, you will need only the Glasstop.

However, before ordering one, ensure that using a smooth business card, that you can run it around the edges of the entire screen to make sure that nothing's wedged between the bezel and the glasstop. Sometimes, things get wedged in there and effectively make the touch screen non-responsive as the garbage wedged in there triggers a false press.