Vols mods issue

[Steelwhip]

I like the look of Volcanos mods....but I always seem to have a slight issue when im shifting his folders into my game files.

specifically, I can never seem to be able to transfer over the Units.dat file for each nationality. It will never let me overwrite the old file and put the new file in, and I always have issues transferring over a 'new faction' into my existing game folder. Typically these are usually listed as the East-German folder. As he says in his Sealion '40 mod-"This "East-German" folder is actually the Kriegsmarine nationality.  Since the nationalities are hard-coded into the game I had to use a directory name that the game recognizes."

the computer always tells me that the East-German folder already exists and I can never shift Vols folder over....even if the East-German folder isnt even used in that game. 

im sure im doing something wrong...any help would be appreciated