I started this on a few days ago and just read through the comments here and have a few observations.
First, I have noticed a trend that Cps are not exact, there are sometimes creases left out, so staying absolutely true to the CP can be an obstacle, Such as where the horns meet the head, there are 3 points, which cannot fold flat, also, the ears do not match quite right for a flat base. However, I find that if you have done all the creases on the CP, you are pretty much at a base, and only some minor tweaking may be needed. The CP gives enough info to get there.
On that note, I have a question myself: 3 units from either side of the vertical center, there are vertical lines running from the ears to the bottom edge. Anyone know what those are for? I got it to fold flat as shown here:
http://www.flickr.com/photos/34153370@N00/1306346263 but I'd still like to know, just kinda curious like that.
Also, if you look closely at his thighs here:
http://www.flickr.com/photos/sipmab/1277922019/sizes/o/ I noticed the angled pleat, which means you kinda need to turn the leg inside out and run it between the flaps of the front flap. I guess the second one forms a tail?
Well I hope this extra info helps anyone trying to make this.