I can't seem to find out how to work these mods with riivolution. Could someone please tell me where to put these files, like textures for starters, so that they'll work? Where do I put this beam Sword brres file? Where do csp files go? Why does my game freeze when I replace a Fit(character).pac file with a new pac file?

That's essentially the problem. I'm using Brawl+ and Riivolution, but whenever I use a modified common3.pac, the game won't start. Is it that I'm supposed to use multiple common3.pac files? I tried using the keyblade mod, smashball mod, and a Kingdom Hearts StrapEn file but nothing is working. Thanks for any help provided.

EDIT: Please? I need to know if anything bad would happen if I put two common3.pac files in there. (I'm trying out different things to solve the problem.) Also, it turns out that the common3 files were the ones not working. The KH strap screen works fine.