MMS Gateway + PHP

Hi All, I've a typical problem. I'm using Mbuni MMS gateway. This gateaway provides a method of forwarding an incoming MMS file to a HTTP Server, where it could be uploaded. I run a PHP script on the server, to dump the MMS into a database. Now I do not have a typical HTML form to upload the MMS. Only 2 fields in the configuration file : post-url = http://localhost/one.php/ http-post-parameters = userfile=%z where %z signifies all parts of the MM. I'm used to seeing PHP code for uploading files which resembles: if($_FILES['userfile']['size'] > 0 ) { $fileName = $_FILES['userfile']['name']; } Unfortunately, the condition $_FILES['userfile']['size'] is never satisfied. Can anyone help me determine that my file is properly reaching the HTTP server in the first place? If the problem statement isn't clear, all fault is mine :) Thanx KM