Stupid bug!

Excuse me, but why checkpoints do not update when you replay episodes. In the very beginning, After mad doctor - i am ALWAYS dead, even if i won the battle with the doctor. There is only one option shown - YOU ARE DEAD.
I think this is because check points can not re-write itself. If i replay the episode - checkpoint is not updating itself (it even has wrong date and time - the very first one, but not the current date and time). So i cant change my mistake and application shows only that im dead ( but again - text/book shows that i killed the mad doctor). Can you fix it? Or give me my money back!

AlexOmel about Heavy Metal Thunder - The Interactive SciFi Gamebook, v1.1