OWA setup

Hi,

I am very new to Exchange. We merged over from GroupWise. My 50 users all have Outlook 2002 configured to access Exchange. I want to give all users outside access to email using OWA. I have a separate MS web server in the “DMZ” from my Exchange 2000 server. I have read an article on the front end back end setup, but it sounds kinda of complicated. Does anyone know of any books or resources that could help step me through the setup procedure. I use a firewall with NAT.

thanks,
Rob