Configurate PostFix with Web min

Hello,my english is bad, sorry!

I study software in the university.
I need configure a mail server in a net. This net have 5 servers: dsn, web, ftp, correo and firewall. My group debe configurar only the mail server, but all servers must work good.
We are using fedora core 6 installed in a virtual machine. we are using webmin too. In web min is postfix installed, but I must configure it.
How I can do it? a link? module? tutorial ? help me ..please please

 

Please don't double-post: http://www.howtoforge.com/forums/showthread.php?t=12278