This is the quick installation guide from the package. Not really extensive, but it covers all you need to know.
In the package there are two different kinds of screws. Two normal screws, when installing the cooler with enough space around for a screwdriver and two screws that you can turn in with your hands.
On some mainboard/gfx combinations you will have a problem with the space between the cooler and the graphics card, as I have on my system. I used one normal screw on the side of the cooler before I installed it, then I used the other screw for the other side and it worked fine.