When you say it "doesn't work" what precisely do you mean? Do you mean the new models just don't show up, or does MotS refuse to load? Do you get an error message (if so, what error)?
Note: this won't work with any cracked version of the game, only the original (and the exe file can't be "read only" or the patch won't apply).
As for not finding the bat file, just search for it, and you'll find where it was installed.