Help ripping Xenoblade 1 (Wii) Maps

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Can you please clarify what you mean by that? Obviously their UV maps are wrong, but I'm not sure what that has to do with layering different textures across each other...

explain through example: the Bionis' right arm


so here's the right arm without any snow textures


this is snow texture 1


this is snow texture 2, using a different UV map on the same mesh


and this is them layered together for the final result

if you use the same UV map for both textures, one of them will be wrong, and so the final result will be wrong

Ah, that makes sense. How do I rip them correctly, then?