Registration Integration

I want to integrate my CB registration form with an affiliate sign up form. Ideally, I will create a tab under which my affiliates will sign up and this sign up info will be sent to my affiliate db. I have the code to insert, can you tell me where to insert the php script to send registration info?

// inserting new affiliate
// the mandatory fields might differ depending
// on your settings

$affiliate = new Pap_Api_Affiliate($session);
$affiliate->setUsername("some@email.com");
$affiliate->setFirstname("John");
$affiliate->setLastname("Smith");

try {
if ($affiliate->add()) {
echo "Affiliate saved successfuly";
} else {
die("Cannot save affiliate: ".$affiliate->getMessage());
}
} catch (Exception $e) {
die("Error while communicating with PAP: ".$e->getMessage());
}

Post Affiliate Pro offers and integration for Joomla to register users as affiliates, is that not acceptable? At any rate you could create fields in CB > Field Management for them to specify an affiliate username and name then using incubator project CB Auto Actions perform a GET/POST request (using Code action) on a PHP file that handles the PAP part. You could develop a new plugin to also do this using CB triggers, please see tutorials within my signature regarding trigger usage and a working example.