KD_XMLRPC.PHP pass by reference depricated

KD_XMLRPC.PHP pass by reference depricated

I am getting the error like "Call-time pass-by-reference has been
deprecated in C:\wamp\www\testing\kd_xmlrpc.php on line 83"
I have also tried to replace the &$this to $this by removing the & but at
that time the xmlrpc file was not working.
So please guide me where i am wrong in these? or do i need to update my
xmlrpc.php file? If yes let me know from where i can get the latest one..