xmlrpc does not work on remote hosting server

[eluser]Unknown[/eluser]
Hello,
Im trying to learn to implement CI xmlrpc class, the example given in the documentation is working fine on local system.. if i try to implement the same on the remote system .. im getting the following message


'Did not receive a '200 OK' response from remote server. (HTTP/1.1 404 Not Found)'

Following is the source code and ../application/config.php

Code:

xmlrpc_client.php
============
<?
class Xmlrpc_client extends Controller{
        function index()
        {
                $this->load->helper('url');
                $server_url = site_url('http://www.zyx.com/ciprojects/rpc/');
                $this->load->library('xmlrpc');
                $this->xmlrpc->server($server_url,80);
                $this->xmlrpc->method('Greetings');
                $request = array('How are you vikram');
                $this->xmlrpc->request($request);
                if(!$this->xmlrpc->send_request())
                {
                        echo $this->xmlrpc->display_error();
                }
                else
                {
                        echo '<pre>';
                        print_r($this->xmlrpc->display_response());
                        echo '</pre>';
                }
        }
}
?&gt;

xmlrpc_server.php
==============
&lt;?php
class Xmlrpc_server extends Controller {
        function index()
        {
                $this->load->library('xmlrpc');
                $this->load->library('xmlrpcs');
                
                $config['functions']['Greetings'] = array('function'=>'Xmlrpc_server.process');
                $this->xmlrpcs->initialize($config);
                $this->xmlrpcs->serve();
        }
        function process($request)
        {
                $parameters = $request->output_parameters();
                $response = array(      
                                        array(
                                                'you_said' => $parameters['0'],
                                                'i_respond' => 'Not bad at all.'),
                                        'struct');
                return $this->xmlrpc->send_response($response);
        }
}
?&gt;
../application/config.php
==========================
/*
|--------------------------------------------------------------------------
| Base Site URL
*/
$config['base_url']     = "http://www.zyx.com/ciprojects/rpc/";