Routing a document using FTP, VPn

Hi I got the response for routing documents,
I am running windows 2003 server with service pack1. I enabled ftp services.
I created a folder and followed the directions,but i cannot update the word document. Can we update the word documents? Am I missing any thing
BYW- What to do for uploading and downloading the doc?
Anothe Issue:
I gave permissions to access this doc using VPN. But some disadvantages.
Because everyone has to use their pc anc configured.
What is the best way can we do this type.
Help me out