The drupal ecommerce solution has a problem with the shipping email. On a fresh install of version 3.x the ‘shipping notify’ option will throw the error message “Mail template for ec_mail_shipping_notification could not be found!”. There is this support request on drupal.org that will fix it. Follow the link bellow and apply the patch from JohnAlbin, comment #4. http://drupal.org/node/162512 You should now have a default shipping drop down in the store options.