I just checked the patch against my 94 automatic Corvette and my 95 manual Corvette. On the 95 manual, the patch worked perfectly. This makes me think it was written for a manual car.

On my 94 automatic, I had to click "remove patch" then patch, then "apply patch" and patch again. This bypasses the "data does not match" error message you were getting. As long as you have a backup of your original BIN, I see no reason why not to give that a shot.