I suppose that you have already unlocked your Mio. If not, here:
Delete everything from your internal disk on the C device. Do the download of the unlock and just copy all the files/folders in the download [just as they are] to the internal disk. Copy the program to your SD card. Add contents [maps and such].
To use the unlock, press the Miomap button when the device starts and it will switch to the unlock.
I've been told that this unlock works with MOOV and Spirits. BUT I've never tried it [I have a MIO C320] so proceed at your own risk. Please post your results.
[Only registered and activated users can see links. ]