For now Linux MCE can only be installed on top of the Ubuntu 6.10 distribution of Linux, which is available here.
Optionally, before running the installer below, you can download LinuxMCE as an .iso image to burn to cd here so the installer won't need to fetch the software from the internet. But its a 'dead' link!
Or, if you are currently running Ubuntu 6.10, install LinuxMCE by selecting:
http://linuxmce.com/images/download_button.gif Another dead link!