Have you found an issue to this?
Here is a few lines in my authorizenet_cc_aim.php
if (function_exists('curl_init')) {
$curl = curl_init($server['scheme'] . '://' . $server['host'] . $server['curl'] . (isset($server['query']) ? '?' . $server['query'] : ''));
curl_setopt($curl, CURLOPT_PORT, $server['port']);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FORBID_REUSE, 1);
curl_setopt($curl, CURLOPT_FRESH_CONNECT, 1);
Where do I Put
curl_setopt($curl, CURLOPT_HTTPPROXYTUNNEL, TRUE);
curl_setopt($curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
curl_setopt($curl, CURLOPT_PROXY, "http://proxy.shr.secureserver.net:3128");