Buy this book! Best thing I ever ever read about teaching technique. I an in no affiliation to the authors. I am a track coach/athlete and Collegiate strength coach in Northern NJ.
I'd recommend going through the USA Weightlifting Club Coaches certification course. It's relatively cheap and doesn't take much time. A good deal of time is spent going over the technical aspects of the OLs.
Sorry I don't have a quick fix but I know there are some pictures series floating around on the net. Perhaps I'll put one together for this site when I get a chance.