There seems to be multiple problems with unlocking extras. I used every possible dialog option, but the following didn't get unlocked:
* The comics
* I have only 8/9 of the "Full CG's" in the Scout Squabble episode. I have the "Kourtney as cheerleader", "404 in scout uniform", "Kourtney changing clothes", the 3 pics with 62 in the janitor's closet and the 2 final pics with Betsy. Not sure if there's really any missing.
* Another user below mentioned: "Kuddlefury links in the "Order of the furry paw" causes my game to crash." - I have no idea what that's supposed to be.
On the plus side, I have the 4th episode, which I guess was meant with [Readacted]. I also have 8 recordings, which is probably also the complete batch.
Maybe you could make a version with everything unlocked available for download.