libraries go into a directory called libraries in your sketchbook directory. if you don't know the location of your sketchbook, it can be found by selecting preferences from the file menu in arduino.
the are example sketches installed with the libraries. these can be loaded via the file menu.
you will probably have to fiddle with the contrast pot a little.
"i want to lead a dissipate existence, play scratchy records and enjoy my decline" - iggy pop, i need more