Dr. Byte said the following in the archived thread http://www.zen-cart.com/forum/showthread.php?t=29487

Virtual HTTPS path = this is similar to the physical path for the regular webserver. If you have a dedicated certificate, it's the same path. If you're using a shared certificate BUT still on the SAME webserver AND running from the SAME set of files as the main HTTP webserver URL does, then it's also the same path as the regular webserver above.
HOWEVER, if your SSL certificate runs from another set of folders (and you have to have 2 copies of your files in 2 different subdirectories on your hosting account), then this path must be set to the SSL copy of the files.
ie: /home/www/yoursite/httpsdocs

(This confusion wouldn't exist if some hosts didn't have some very weird and old-school ideas for setting up SSL support.)
I have a Zen Cart store http://www.arcpoetry.ca/stand/ that was working fine on a previous host with shared SSL. I've moved to a new host and their shared SSL is on a different server than the main site. Hosting support says I need to re-ftp the installation files to the shared SSL site.

Am I getting this right? Given the shared SSL setup of my new host, do I have to maintain two complete sets of the Zen Cart installation and any of my overrides in two locations ie. on two different servers?

Or will it work with one installation on the shared SSL site?

I'm sure there must be instructions somewhere on installing to a second server for shared SSL but I've been unable to find them through searches of the faqs and forums. I keep coming across references to broken links. If someone could repost relevant links (that are not broken), I'm sure others would find this active thread useful.