Shouldn't we first make sure the codes we have work? As I've been trying to explain all along, nobody online I know about has specifically proven that the PAL version of Colosseum is capable of transferring Celebi and Pikachu to a GBA.
To be fair it's not impossible Nintendo's translators goofed, and German Colosseum sends them with a Japanese OT and nickname like the picture I linked to earlier implies.