I decided to create a thread for this problem. I installed Multi-Site manager. Put in the domain in the back end and BOOM. I got nailed with the below message on my home page:
No WPMU site defined on this host. If you are the owner of this site, please check Debugging WPMU for further assistance.
Removing the plugin doesn't remedy the problem. Removing the parked domains still results in the same problem. This is bad... The instructions I had were here:
http://www.brilliances.com/multisite-manager-with-wordpress-mu/
After further review and deleting all references of the second site I cloned in cpanel, which you have to do, I still couldn't get the home page to show up properly. To do this you will see most of the entries in two places: (1) The sites table which will have your new site, and (2) Several tables which have the latest entry for a new blog with the last/highest number entered.
I had to reupload the wp-config.php and that did the trick for anyone wondering. MAKE SURE YOU BACK UP THIS FILE as well as your site before installing the Multisite plugin.
I haven't tried to reinstall the Multisite plugin until someone can give me an explanation as to what happened and why I had the bad experience above. Hopefully this topic will help us install the plugin and provide an answer should you have a heart attack from the above problem.