If you don't have a "www" folder then you didn't unpack the game, the utility is included in the rar. Open the utility, browse to the game folder, then select the Game.exe and wait for it to unpack into the folder where the game is. You should have a "%DefaultFolder%", you can delete all the other Game.exes, including the one you used to unpack the game, you don't need those anymore, then rename the "%DefaultFolder%" to "DefaultFolder", or anything you want as long as there's no percent signs or any non alphanumeric characters. Inside "DefaultFolder" will be the new Game.exe that you use to play the game and the "www" folder that has all the data files that the translation needs to replace, should just be able to drag and drop the translation files from the rar and you're good to go. Make sure you have V35, as that is the one I MTL'd. I'll do one for V42 tonight or tomorrow, depending on if my internet wants to behave or not.
P.S. if anybody that has access to the Fantia doesn't mind sharing the newest versions of the game, I can MTL it pretty quick, it won't be great but it should be good enough to be playable.