Well, I have just watched the first 2 videos, the installation 'epics'
I think the original aim of this thread was to get some 'basics' for those of us without prior image editing skills. Things like Layers, grabbing parts of images and resizing, re-colouring etc.......
The installation tutorials show you how to install PDN, which hopefully is good for some people. I then watched the LassoLayers video, which is better, but nothing that you would not really have discovered by messing around yourself.
There is still a big hole here, and these are not specifically PDN skills, rather basic image editing skills. I believe that these have not yet been addressed as per the original point of this thread. I will have a look around and see if I can find some good stuff and post back if successful.
P