include "http:" failed to open stream: problem

Hi i have a php page that when it is submitted it does some stuff and then in an 'if' block does the following:
include "http://127.0.0.1/paragon/client_hist.php?aid=$agent_ID";

when i run this i get an error:
Warning: include(http://127.0.0.1/paragon/client_hist.php) [function.include]: failed to open stream: HTTP request failed! HTTP/1.1 401 Access Denied in C:\Inetpub\wwwroot\paragon\account_save.php on line 69

Warning: include() [function.include]: Failed opening 'http://127.0.0.1/paragon/client_hist.php' for inclusion (include_path='.:/usr/local/lib/php') in C:\Inetpub\wwwroot\paragon\account_save.php on line 69

However if i run it just like
include"client_hist.php";
it works and goes to the page i need.

However I need to pass a variable to the next page!!!
and if i do
include"client_hist.php?aid=$agent_ID"
I get an error:
Warning: include(client_hist.php?cid=33) [function.include]: failed to open stream: Invalid argument in C:\Inetpub\wwwroot\paragon\account_save.php on line 69

Warning: include() [function.include]: Failed opening 'client_hist.php?cid=33' for inclusion (include_path='.:/usr/local/lib/php') in C:\Inetpub\wwwroot\paragon\account_save.php on line 69

I guess its looking for the exact file name including ?cid=33 ???

I am not sure whats happening with this stuff:
my php.ini includes the following:
safe_mode = Off
safe_mode_gid = Off
safe_mode_include_dir = Off
include_path = ".:/usr/local/lib/php" #read this somewhere don't know why??tried others
file_uploads = On
allow_url_fopen = On
allow_url_include = On

I don't know what else u need to know just help!

 

Try:

$_GET['aid'] = $agent_ID; // or $_GET['cid'] ??

include 'client_hist.php';

PHP:

 

The above (by nico) would work fine.

You can also use the absolute url to your website:

include('http://SERVERID/~username/pagetoinclude.php');

PHP:

Which will only work if your server can recognize it is from the same server.

Peace,