I've installed mine myself, without any instructions. Since the install, i did get a dealer to send some instructions, and they don't help very much. The instructions are too large to post here, I've tried. Drop me an e-mail and I will send them to you.
cgibson199@aol.com
A short version would be to start with the rails, then move on to the cover itself, and finish with the lift struts and tailgate lock. The most difficult part is getting the rails on and located so the cover is square. It may help if you have anyone with one installed to get a few photos for reference points. I did the install without anyone.
Chris