Trouble Exporting Skin Partitions

[Erenna]

So, I'm trying to create some clothing for Skyrim. I'll grant you, it looks pretty craptastic right now, but I feel that I should at least get the hang of the creation process before getting more practice creating clothing. Anyway, for some reason even though I've set the vertex groups for the skin partitions, as well as set the, 'Export Skin Partition' and, 'Export Dismemberment Partitions' options, it's not actually exporting with a BSDismemberSkinInstance node when viewed in NifSkope. Anyone have any idea why? I can post my .blend file if necessary.