Car Demon has a wide variety of PHP constants that can be used to modify functionality.
Over time many of these constants will be turned into settings that can be adjusted on the settings page. In the meantime you can define these in your wp-config.php file right above where it says:
/* That's all, stop editing! Happy blogging. */
CD_FORM_PROVIDER will allow you to define a custom form provider as part of the adfXML attachment. You must be using the adfXML form feature to utilize this constant.
To do this you would add the following to your wp-config.php file:
define( 'CD_FORM_PROVIDER', 'website' );