Hi, I am in the process of integrating vbulletin and idevaffiliate ( I have seen other people do it so I know it's possible ) for subscription payment affiliate management. I am currently thinking it is to be done in the payment_gateway.php once payment is completed via a CURL call to the idevaffiliate sale.php file. However, sale.php of idevaffiliate requires an IP address to be passed ( retrieved from the IPN notification )... does anyone know where and how I can retrieve this information in the vbulletin payment_gateway file? Also, where is the best place to place the CURL call. Thanks in advance, John