Unfortunately, we don't have any back-ups of the original wiki. (Yes, I'm very mad about that since I wrote most of that documentation.) If you need the documentation from version 1.2, you can use a copy of it at archive.org:
http://web.archive.org/web/201308010000 ... smaker.com
It requires patience to see the old PM Wiki pages in archive.org, but keep clicking and eventually they will display.
Amos B. Batto ♦ ProcessMaker Forum Manager since 2009