I just can't seem to get this get this to work...
For the match result portraits, you need to get hold of a series of files named, MenSelchrFaceB###.brres, and then place them in...
[SD drive]\private\wii\app\RSBE\pf\menu\common\char_bust_tex\
Now, like what Micaiah91 said, you can export the archives from char_bust_tex_lz77, but they will be compressed. You must decompress the files before using them.
Regarding the CSS face icons, you can modify them via sc_selcharacter.pac. The icons will be inside the archive, MiscData[70].
How do I decompress them? My game freezes when it reaches the results screen.
BTW... Here is what I have. I'm trying to get Sonic to work...
\private\wii\app\RSBE\pf\menu\common\char_bust_tex\MenSelchrFaceB460.brres
Inside them I have the palletes and textures from the character select screen.