Backup server on Ubuntu

I have a Home Server at home.
It should have following functions:

• Printer server;


• Fire sharing server;


• AMP server, including Apache, MySQL, PHP for testing purpose;


• P2P client to download something for fun with web interface;


• Backup server, to backup the files on the desktops in home lan.

P2P software, I use aMule.

Backup, I want to use Restore, but failed. They don't have the release for Ubuntu 8.04. Someone said it is good on 7.10.
A lot of request for the 8.04 version posted on its forum. I have to wait for the new one.

The way to install Restore is here:
http://distro.ruffdogs.com/restore/