It dawned on my that I might find the missing scripts on Archive.org, and sure enough, there they were:
https://web.archive.org/web/20090605054337/https://www.playonlinux.com/en/topic-2468-script_CATIA_V5.html
So I retired question 3. I tried running the CATIA install script and some of the links to files are obsolete. I updated the links, but now when the CATIA disk starts to install I get the error:
"Setup problem with VC8 runtime. Please try to restart your computer or contact customer service."
This seems to be a rather common problem with CATIA installation - the error even appears in their installation manual. But before I dive into that rabbit hole I thought I would look at winetricks.sh. This script was still available from the original website circa 2009, but I think I found a more up-to-date download here:
https://raw.githubusercontent.com/tiagochiavericosta/open-sapi/master/open-sapi/installer/winetricks.sh
I will post an updated version of the CATIA V5R19 install script in this thread as my next post.
S now, my new questions are:
1. Will PlayOnMac run PlayOnLinux install scripts? I think the answer is yes but I'd just like to confirm.
2. Is there a step-by-step tutorial describing how to run PlayOnLinux scripts on PlayOnMac?
4. Will the sript below run on the latest version of PlayOnMac?
5. Is there a more up-to-date version of winetricks.sh than the one I found or is winetricks.sh still even needed to work with the latest version of PlayOnMac?
Thanks