Are you talking about this script?
http://vgboy.dabomstew.com/other/BlackuToHowhite.txt
I haven't read all of it but if this is used (which I know ruinairas was talking about it) more than just "some stuff" can be translated.
It's coming soon I think Riolu Aura Sphere Now is working on it.
Also I really don't know much about AR codes but is there a way to get a AR code to change a Pokemon's ability?
Hehe, this is my first post here!