Thanks for your reply. I probably should have been more specific, though. What they want to edit is the title and page header for the featured products page.

Line #22 : define('NAVBAR_TITLE', 'Featured Products');
Line #23 : define('HEADING_TITLE', 'Featured Products');

...in /includes/languages/english/featured_products.php

They want to change them out seasonally (Christmas, Mother's Day, etc.).