Sadly, it might take more time than originally expected.
Right now, I have like 3616 folders filled with .txt files full of numbers and line of codes, each one weighting less than a single megabyte. I also found a bunch of .jpgs which seem to be part of a larger pictures, and some audio files with no sound in them... The only thing I've found so far which seems to indicate those are indeed my files is a single .jpg of what looks to be a page of a 3rd party D&D 3.x book which more than likely used to be a pdf. All strange...
I'm very disappointed at this data recovery. I have another friend who's willing to take a look at that, but this will have to wait until he gets back from his vacation in Cuba next month.