Trying to get a ShopperPress WP theme on-line.  The Payment’s section pulls this tool  out and throws it at me:

Fatal error: Cannot redeclare gateway_google() (previously declared in /home/content/46/7822446/html/wp-content/plugins/wp-e-commerce/wpsc-merchants/GoogleCheckout-XML.php:23) in /home/content/46/7822446/html/wp-content/themes/shopperpress/PPT/func/func_paymentgateways.php on line 900

The hack is pretty easy…  Just turn off all of your plugins, including your WP eCommerce plugin.  Then it will work just fine.