[Apophis]

This does work with 3.0.7 with one minor modification.

Open
/includes/functions_subscriptions.php

Find

function construct_payment($method, $cost, $currency, $subscriptionid, $title, $userid)
{
        global $vboptions,$DB_site;

Replace With

function construct_payment($method, $cost, $currency, $subscriptionid, $title, $userinfo)
{
        global $vboptions,$DB_site;

It's a simple variable change from $userid to $userinfo