Right; that's failing because "path to me" doesn't work when running the script in the script editor. The real question is whether or not we can launch and run SuperDuper! when in Japanese mode.
So, what I'd suggest is -- in Terminal, in Japanese mode, with SuperDuper! not running -- running the following:
Code:
osascript
tell application "SuperDuper!" to launch
Then press Control-d. That *should* launch SuperDuper. Does it?