Please, get the attached file. It contains the detail on how the site should be designed now not the way it was formally written. Note: on the GOLD supplier design, if you can use API to call the 3dcart software to display the product on the site is ok just as stated by their customer care below:
LET YOUR PROGRAMMER KNOW THAT HE WILL HAVE ACCESS TO THE API IF HE NEEDS TO RUN AND AUTOMATED SCRIPTS OR FEEDS.
You have to know that All the GOLD suppliers will not have a 3dcart shopping store like [url removed, login to view]
Many may have an existing site and may want to join our GOLD supplier.