Yes, I think his site is down.  Hopefully he'll notice and address the matter.  He's been busy with real-world matters, so I hesitate to trouble him about it at the moment.  If you need certain scripts, PM me with an e-mail address that can accept attachments.

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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.