Yeah, it's completely ok Actually, I'm kinda curious... how can you make a model work with MMD? It's something I've always wanted to try but never managed to :/
well i have her ready for bones and junk lol but in xna i make her a obj file open her in meta maker her an X file open in pmd and add her textures and then she needs bones and facials and then save her and open her up in mmd some people do it completely different because the textures on some models get messed up the way i do it D: