continuing with zen cart

I probably should have mentioned that I'm using this site:

http://tutorials.zen-cart.com/index.php?article=107

as a guide.

On this page, I see the following instructions:

You will need the following information for the installation:

* The physical path to your new Zen Cart™ directory
Example: /home2/zencart/public_html/catalog

* The Virtual HTTP Path (the URL to your domain and directory for your shop)
Example: http://www.mydomain.com/catalog

* The Virtual HTTPS Server (the secure URL to your domain)
Example: https://www.mydomain.com
Note: if you have a shared certificate on a virtual server this may look like:
https://mydomain.secureservername.net/
- or - https://secure.sharedservername.net/~username

* The Virtual HTTPS Path (the secure URL to your domain and directory for your shop)
Example: https://www.mydomain.com/catalog
- or - https://secure.sharedservername.net/~username/catalog

I can access:
http://192.168.31.132/

but not

https://192.168.31.132/

What's going on here?