https://wiki.ubuntu.com/Xubuntu/Releases?action=show&redirect=XubuntuReleases
Install Xubuntu using package manager

If you allready have a Ubuntu, Kubuntu or Edubuntu CD, here's instructions how to install Xubuntu: [WWW] https://wiki.ubuntu.com/InstallingXubuntu

Here's an alternative guide: [WWW] http://www.psychocats.net/ubuntu/xubuntu