Dunno if anybody really cares, given the conditions of the game and the community, but while mirror moon's translation comes, I managed to translate the MBAC configuration windows to the best of my ability. There's still some stuff I'm not exactly sure of (the third checkbox in the advanced config window has me stumped, so I had to make do with what I had and what Google Translate offered), and there's an unused Enable VSync window hidden in there that also has a line that got me cracking my head, but for the most part it's all understandable now. It's for v1.03A, the latest available version of the game.
The link is here:
http://www.fileden.com/files/2008/3/12/1809930/MeltyBlood/mbacPCtranslated.rarIf you're gonna use this, although I guarantee it works, it's always recommended for you to back up your original EXE and trying mine before you go deleting yours, in case something goes wrong.
Finally, if any mod/admin thinks this is in the wrong place, please move this thread to wherever it belongs.