I found the official info on the internet archives but my time is limited right now. Perhaps someone with more free time can take the next steps? I've updated a couple modules but some of the graphs in the descriptions didn't carry over. Not sure if embedded graphics/links in the description body is an option.
At any rate, at least here is a link to the info I found for others that may be searching for it (last good snapshot):
https://web.archive.org/web/20121220045901/http://www.ear-group.net/earhome.php
It may also be new idea for folks searching for information on other defunct manufacturers' modules to try the wayback machine....