You don't have to do anything to the database.
The MySQLi version has built in Cross Site Scripting protection which prevents display of html on the page in case a user does it maliciously.
You can disable that in the rsobj.php file settings by updating that page globally (you will see it near the top of the page), or you can disable it for just the fields you want to allow html to display like:
<?php
echo $rsContent->getColumnVal('Content',false);
?>