Sorry I'm not being responsive. I'm really busy at work.

Matmatic scripts are not standalone python scripts. They need to be executed by matmatic.

You need to install matmatic, and configure it to tell it where to look for scripts. Once its configured, you just run it, and it runs the scripts that are new on your system. The scripts then produce material files or mat pose files or material collections.

Acadia has put together a number of links to threads, and some basic instructions.

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2722867

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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)