Download this template and put it in the "Riivolution" folder in your SD card.http://www.mediafire.commediafire.com/?1svfbi9gtto7v8c
Then put any file with the correct original name in there. It's kinda like the "My Stuff" folder in Mario Kart Wii, except everything goes in there. I made the XML myself
Took me a while because I got confused.
Download cool Brawl mods:
Assist Trophies, Characters, and Stages original file names:
Music (BRSTM) original file names: