The new character set, ISO-8859-15 which is also known as latin9 and to maximize confusion as latin0, was created to replace ISO-8859-1 (latin1) and it includes euro and cent characters.
The Euro is mapped to keys AltGr-e and the cent is mapped to AltGr-Shift in X and on AltGr-c on console.
The Euro Mini HOWTO was written on a Debian system and the set up works on Debian Woody (Debian testing as the time of writing).