Where do I stick it? (be nice now)

[eluser]John Pantoja[/eluser]
Well, everything should go to your controller( or should I say does). You two have options (or more), process some of the logic directly inside your controller or hand some of that off to routes.php . You can use regular expression to do some of your processing and then have your controller verify before it does anything else. Check the CI docs for URL routing to help you get started.