Extract all and then it should work.
You have to download a new version of the game to have all the latest features. So, unless I misinterpreted your question, the answer is no.
It's an accidental spelling error, when the creator sees, they will fix it for the next update.
Press . or , if you want to zoom or press a with your mouse for auto zoom.
The game is really fun, so props to you for creating it.