Forum Moderators: coopster
how do I add additional questions on the registration form?
Locate the registration form and add the HTML <input> variables you would like to begin tracking. Then, using the form "action" attribute to follow the logic of a user submission, locate the place where the database is updated. I would likely create a parallel file as opposed to modifying the original to store my additional form values (makes WP upgrade processes a little cleaner/easier to maintain).
And how do I access the information gathered from the database?
Locate the process that is displaying the information in HTML where you would like it displayed and add your query to the process to get the new additional information. Otherwise, develop your own process that retrieves and displays the information.