Have you tried youtube? I have this cooler on one of my systems and it is easy to install. Hard to describe though.
This is for an AMD CPUhttp://youtu.be/xYyqe4N1ZT4
I just made some progress, the clip goes under it and then another clip thing latches onto the other side and the motherboard, but it doesn't reach from the other clip to the mother board for me! It's very close but I simply can't get it in. This is so frustrating!