This document describes how to setup Webmin on an Ubuntu Feisty Fawn (7.04) server.
Read it at howtoforge
The only changes I had made to the setup shown there was to install Mondo for backups and also revert the dcc-client and dcc-server back to version 1.2.74-2. I had to do this to get the DCC client and server running on Feisty as there was no upgrade package for it (yet??) and the instructions above were designed for Ubuntu Edgy Eft (6.10)