Really nice stuff! The only thing i wanna say is i would like to see reviews of custom episodes of different authors, because if i dont mind all of these episodes are from either iv4n or Radjh(or both). I only played Nagz Island(and still didn't finish it) so i can't tell my opinions about these reviews, but by the looks of it, it is great, it is organized, just maybe not stric enough(again, i can't tell for sure if all those episodes are really good to receive these grades or if you weren't strict in the review). Plus, i think adding a total/general grade for the whole episode(and general notes) would be a nice feature.
Can you please put the episode Forerunner's Island as Forerunner's Island 1.3? I am reworking a lot of stuff so 1.4 will be quite different. Of course you don't have to grade 1.4 as well(unless you want to, that would be nice), just make sure to inform everyone that the version you played was 1.3.