I've been bashing my head against a wall for a while now, trying to enable SSL within Zencart. Any help or direction to a resource that would answer this question would be GREATLY appreciated...Going through this page is how I got this far to begin with:
https://www.zen-cart.com/tutorials/index.php?article=14

Currently, the Zencart store and admin panel work fine as long as SSL is set to false in include/configuration.php and admin/include/config.php.

I am currently using Zencart Version: v1.3.9h

I've also verified I can get to
https://www.reelhotlures.com and https://reelhotlures.com through my browser without an error, so I'm assuming the SSL is working correctly, but I don't know what's causing Zencart to break once enabled.

I get these error messages when trying to access either while enable SSL is set to 'true':
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Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at reelhotlures.com Port 443
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Below is what I have for include/configure.php and admin/include/configure.php.

(I should note that I've tried entering both 'reelhotlures.com' and 'www.reelhotlures.com' within their respective http/https server fields, with no luck using either)

include/configure.php:
define('HTTP_SERVER', 'http://reelhotlures.com');
define('HTTPS_SERVER', 'https://reelhotlures.com');

define('ENABLE_SSL', 'true');


admin/include/configure.php:
define('HTTP_SERVER', 'http://reelhotlures.com');
define('HTTPS_SERVER', 'https://reelhotlures.com');
define('HTTP_CATALOG_SERVER', 'http://reelhotlures.com');
define('HTTPS_CATALOG_SERVER', 'https://reelhotlures.com');

define('ENABLE_SSL_CATALOG', 'true');
define('ENABLE_SSL_ADMIN', 'true');

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I can provide screenshots of how things are set up... Yes, I'm using GoDaddy. From what I have read, that wasn't the best way to go. However, switching my host is not an option at this point.

Here is a screenshot of the SSL cert through GoDaddys panel, so it is registered and active:
(I've blurred out some information on these screenshots because I'm not sure what is sensitive information and what is not)
http://reelhotlures.com/images/example4.jpg

Within my GoDaddy account is a Virtual Dedicated server, that I have the reelhotlures.com site hosted on.
http://reelhotlures.com/images/example2.jpg

On this Virtual Dedicated Server, I also have the SSL hosted and active. If I click on the reelhotlures.com link in this image, it takes me (successfully) to https://reelhotlures.com.
I have also confirmed that going to 'https://WWW.reelhotlures.com' works as well (this is also noted in the zencart faq).
Also, in this screenshot, I have noticed it does say that 'No SSL certificate is currently shared' .... so the SSL SHOULD be a 'DEDICATED' SSL, correct? (I ask because the Zencart FAQ says to verify which type you have, dedicated/shared)
http://reelhotlures.com/images/example3.jpg

And finally, here is a screenshot of the Cpanel for the reelhotlures.com hosted site that is on Virtual Dedicated Server. If I go into the SSL manager, I can see all the keys associated with the SSL. I've noticed it lists the home directory as home/reelhot, but I'm not sure if this should go into the Configure.php files or not. I've also noticed that at the very bottom it lists a 'shared IP address' ... which is the ip address of the virtual dedicated server. I'm not sure if that's important to note.
http://reelhotlures.com/images/example1.jpg