Thanks Rebirth!
But be careful guys, he missed a file to replace (the one in red)
Use wiiscrubber, replacing can take some time:
\layout\ armor_003 + chara_select_03 + mainmenu_04 + mission_select_03 + Option.sgo + option_03 + pause_03
save_03 + strap_01 + title_02 + tutorial + weapon_edit_03 + weapon_select_01
\mission\ mission_list.sgo + tutorial_list.sgo (tutorial is near the end, mlist is in the middle)
\weapon\ WeaponTable.sgo (in the end of weapon folder)
Finally, we have 16 files to replace.
EDIT: sooo I dunno if the files just given are old version but the very most of the game is not translated; weapons names, half of option menu (and choices name), missions plots except Mission 01, before land on title menu I got a message (because I used the Pro Controller I guess) all in japanese excepted the "yes" choice... In addition, video tutorials don't play at all.
Rebirth clearly doesn't understand japanese!
I planned to share this game but this no worth to it...