oscMax/osCommerce

I'm looking for a long term relation ship with a PHP/OsCommerce programmer as I have many OSC projects lined up. This projet relates to oscMax which is a version of OScommerce pre-loaded with add-ons. I've added the MultiVendor shipping contribution to the cart but its not working, The backend/admin stuff all appears to be working fine. The front end is where I'm having a problem. when you go to checkout none of the vendor shipping methods that I have setup are displayed and no errors are being logged. All the code as far as I can tell looks ok so I'm just missing something. I need someone to fix this so I can get on with life and setting up the rest of the cart :) The link to the cart in question is [login to view URL]