Ok, so I compared the file count of both the original and compressed version of the game and both had the same amount of files (7696). And for the empty scripts, I checked the original version (fresh download from f95zone) and it also had empty scripts so I guess it was not a fault in the compressed version and the dev shipped it like that. Also compression does not interfere with the scripts, just with the media files. And I've uploaded an archive of scripts just for you, from a clean, untouched version of the game.
My guess is that the dev changed the structure of the scripts between 1.50 and 1.55 and moved the code to another file. And yeah, the game works fine with those empty scripts, otherwise it would have given error message right away.
Here is the archive. Extract it inside the game\ folder.
MEGA
I hope I've cleared all your doubts regarding the compressed version.