The path seems correct to me, steam/steamapps/common/m2tw/mods..
The executable files of these version haven't got the new lines for the steam path included.
So please try the following:
Just, rename the folder back into italian_wars and move it back to its former directory.
Then open the .bat file, which you'll find inside the italian_wars folder.
Just open it with a txt editor and overwrite the current lines with these here:
Code:
@echo off
cd ..\..
IF EXIST kingdoms.exe (start kingdoms.exe @%0\..\DIK.cfg) ELSE (start medieval2.exe @%0\..\DIK.cfg)
Now, you can start the mod from a shortcut of this .bat file from your desktop