And I’ve written some “instructions” here: http://daveleack.com/2013/10/22/stress-maps-continued/ to get you from the blend file in that post to some sort of working wrinkle demo.
Sorry if it’s all a bit hard to follow. Basically, the only thing missing from the second blend file is 100 baked textures from the first blend file.
There ought to be an easier way of doing this, but I suspect the best way would be for the Stress Mapping co-ordinate system to be implemented in cycles, which is somewhat beyond me.