Hmmm, not sure what to tell you, maybe your version is faulty? It's definitely working, no one else has said anything about not being able to save or usual renpy stuff.
Well, I found that if I hit Esc I can open the save screen, for anyone who didn't know. Now to actually check out the game itself.
AHh okk, glad that's sorted out. I assumed the ESC wasn't working for you for some reason, it's a standard game menu button
