Sam,
There is likely one step before those provided above. More often than not the files are in a zipped folder. You must first unzip the files to a new folder on your USB before they can be loaded into your keyboard's user area.
Good Luck,
Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)