How "off" are they?  Are they close enough that a script could compare the vertices and reassign the UVs of the original mesh to the new positions?  Or locate the matched vertices to work a vertex re-ordering and then just plug the re-ordered new UVs into the orignal .obj?

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.