I answered an ad requesting help with PHP and MySQL. Upon accepting the task, I learned that Wordpress is a black box with a bunch of pretty wrapping paper pasted on top.
Phew... Apparently the shop knew enough about Wordpress to know that its guts are MySQL and PHP, but good luck trying to change any of that. An on-line magazine should not use an off the shelf CMS like Wordpress and be concerned with modifying PHP scripts and MySQL tables. Focus on content and just pay for a Wordpress plugin professional.
Unrelated perhaps, but here is a very good blog article on Drupal injection.