Here is the location of the first fold...
http://i3.photobucket.com/albums/y84/patchworkpiecer/BO_Birth_Certificate_foldcrease.jpg
(pointed out on this image copy of the dailykos cert)
Now go over to the the DailyKos version and located it on that image of the cert. It sticks out like a sore thumb to those that are willing to look the BC over carefully.
http://images.dailykos.com/images/user/3/BO_Birth_Certificate.jpg
The second fold is there also but it is harder to see. You have to zoom in on the Dailykos BC and study the area just above his fathers name on BC. You can see the second crease best in the border area to the left and above his fathers name and over to the far right in the border.
I think you need a really strong imagination to see folds on the images you linked to (and, yes, I did blow them up).
ML/NJ