2. Within the admin/includes/configure.php file change the entries for /admin/ to /new-name/ (All 3 of them)
First Section
Second Section
3. (Optional)After you have done that use the Web Protect feature in your Cpanel to protect the newly renamed 'admin' folder with a User Name and Password. This feature will create the .htaccess protection of that folder for you.
4. This will give you a double login to your Zen Cart control panel.
(Optional)As an added measure you can restrict access to your admin to your ip address only by editing the .htaccess file in the newly renamed admin folder and adding the following to it:
You can add more than one All from "some other ip address" to allow access to other admins on other ip addresses