Gilas, I was able to get this working shortly after my post.
I don't remember what I did, (haha) but it was a combination of one of the following that I had failed to do:
- Input the Certificates correctly so that there are no carriage returns in the copy and paste process..
- ... and then wait for the ISPCONFIG 3 scripts to update the vhost file
Then check the file to see if it has been rewritten/updated:
(Inserting domain.tld with your sitename)..
If none of this helps, check back again. I don't remember it being complicated.. I mainly just needed to be patient for the scripts to update the vhost and restart the apache2 server for the new changes to take effect.
One last thing, make friends with "tail -f /var/log/apache2/error.log" or similar