Help - Upload File to File Server

Hi, i need to upload file from a pc to the file server (where proyect it's running).

How can I do this?

I've readed:
http://www.smartclient.com/smartgwtee/javadoc/com/smartgwt/client/docs/Upload.html

But is not what I'm looking for...

I'm using SmartGWT 2.5.

Thanks in advance...

Ignacio.