Whirlwind Ranch is a WordPress site. We took a base theme and customized it to meet their needs. Other than the storefront the website is pretty simple mostly consisting of pages and posts. The shopping cart was built using WP-eCommerce. They don’t use WP-eCommerce to track inventory so we wrote a custom payment plugin to match their business model, so payment can be delayed until they check inventory on hand and only run the card if the order can be fulfilled.