Richard,
Yes this would be where the hard coding would come like said above.
Change
Code:
define('EMAIL_GV_CLOSURE','Sincerely,' . "\n\n" . STORE_OWNER . "\nStore Owner\n\n". '<a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">'.HTTP_SERVER . DIR_WS_CATALOG ."</a>\n\n");
to
Code:
define('EMAIL_GV_CLOSURE','Sincerely,' . "\n\n" . STORE_OWNER . "\nStore Owner\n\n". '<a href="http://www.yourdomain.com">The Domain You Want Here</a>\n\n");
Where you replace your domain to the actual domain and The Domain you want here to your store name