I'll try to make this as easy as possible and easy to understand.
Download the windows version from the OP, then extract it where you want, it should look something like this (don't mind me, i just use dark background in my folders, easier on my shitty eyes)
View attachment 999836
After you've done this, you should download the latest .jar from
#9,987, when you've downloaded the new .jar, plop it down to the folder that is pictured above and replace the old .jar with the new one, do not extract the .jar file, just leave it there.
Then use the .exe to start the game and you should be good to go.