Blank Page - PHP Fatal error:

Hi, I have a web server and I traslate a module of a one site to other, but in the same server..

this are.
lignum.cl/zona_u/publicar.php
aqua.cl/zona_u/publicar.php

the problem is with the require "HTTP/Upload.php";

the error in the lignum is:

[client 192.168.168.40] PHP Warning: main(HTTP/Upload.php) [<a href='function.main'>function.main</a>]: failed to open stream: No such file or directory in /home/ftpserver/lignum/www/zona_u/publicar.php on line 29

[client 192.168.168.40] PHP Fatal error: main() [<a href='function.require'>function.require</a>]: Failed opening required 'HTTP/Upload.php' (include_path='/var/www/php_libs/jpgraph:/var/www/php_libs/fpdf;/var/www/php_libs/xoad') in /home/ftpserver/lignum/www/zona_u/publicar.php on line 29

the file it is :
/usr/share/pear/HTTP/Upload.php

I put this rute in the requiere but is the same problem.
The blank Page.

Please, Any help me.
Tnks.