Hi there,
Just a heads up and fix on a minor issue. When there's no $table_prefix defined in wp-config.php and WP_DEBUG is enabled, the plugin gives numerous warnings like such:
Notice: Undefined variable: wp_table_prefix in /var/www/sites/wordpress-dev.localnet/public/wp-content/plugins/wp-e-commerce/wpsc-core/wpsc-constants.php on line 116
A quick fix, by ensuring $wp_table_prefix is always defined, is by adding the following at line 103:
$wp_table_prefix = '';
Thanks!