Load up Brawl without codes, and go to the vault. Transfer all the snapshots you need to the SD card, and load the SD card in your computer.
(X):\private\wii\app\rsbe\AL
These are your screenshots. Use a program called bin2jpg to convert them. Hope this helped.
Oh right! I can just get them from normal Brawl duh!
Thanks a lot for the help.
Already know about Bin2JPEG, but thanks anyway.