So i followed the steps, opened the common5.pac with brawlbox and replaced it with pictures that were made to be used as csp's. Some were from the naruto con dl, and others from the csp pack 1 dl. When i try to get to the selection screen to pick my character the game freezes. Does anyone know what is causing this, cus I can't play anymore until i fix it. Please help!!!
1 ) Open up Brawlbox
2) Press Ctrl O (Open)
3) Choose the common5.pac file in your SD card (or if you have an sc.character.pac file choose that instead)
4) Expand the sc.character_en in the common5.pac (you DO NOT NEED this step if you have an sc.character.pac file already)
5) Expand the char_bust_tex_lz77 file.
6) Each of the MiscData[X] files corresponds with a character, when you choose one you will see a Palettes and a Textures file.
7) Expand the TEXTURES file.

You will see 5 or 6 picture files. Choose the picture you want to replace, right-click and press "Replace"
9) Choose one of the CSPs from my pack
10) Voila!!