Update AMP.php

Need to use client_id not id

Author: PhonicUK

modules/servers/AMP/AMP.php

@@ -283,7 +283,7 @@ function AMP_CreateAccount(array $params)
         $firstinitial = $params['clientsdetails']['firstname'][0];
         $lastname = $params['clientsdetails']['lastname'];
         $clientid = str_pad($params['clientsdetails']['client_id'], 4, '0', STR_PAD_LEFT);
-        $username = $firstinitial.$lastname.'#'.$id;
+        $username = $firstinitial.$lastname.'#'.$client_id;
 
         $password = sprintf('%04X%04X-%04X-%04X-%04X-%04X%04X%04X', mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(16384, 20479), mt_rand(32768, 49151), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535));