By the way, if it hasn't occured to you yet, you should know that using the same techniques I can convert any of the following to any other, in any order, with Poser alone:

Mirror Ball
Angular Map
Panorama 
Multiple Mirror Ball (photos from different angles, add up to complete image, avoiding distortion)
Box map (six photos)

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)