When I change things in http://www.triathletedad.com, I have found that it re-directs the changes to my other site, http://www.susiej.com. This re-direct is not intentional -- I want each site to be its own stand-alone site with no re-directs. I contacted my host, and here was the response, below. I'm wondering where do I make these changes -- from the confif.php file in a text editor, or within my wordpress admin panels?
Looking at your WordPress configuration, you are accessing the database for the susiej domain - should you be accessing the database for triathletedad.com instead? This appears to be the likely cause of the problem. Please check the wp-config.php file in your site (there are several - I don't know which one your install is currently using). You will see references to your database:
('DB_USER', 'susiej'); // Your MySQL username
('DB_PASSWORD', 'susiej'); // ...and password
Try changing these to the triathletedad database username and password.
Thanks for your help.