Yeah, that's right. The original was an older version of renpy. The newer renpy includes a better base interface and some basic 3d engine capabilities that allow effects I wanted to use in the visual stuff. The parts of the game I haven't edited yet are not changed at all, so some of the minor typos or bugs will still be there, but the game-breaking ones are fixed, like crash on basement route* and jump to wrong character on construction.
* oops, actaully I didn't fix that in the post.. whoops. It's fixed now, for the next post.