keyboard mapping
 

Is there anyway to map keys on the keyboard to functions...say...'END (CARRIAGE RETURN)'...so that when you press the button, that function automatically goes in.

yes but you have to edit your xorg config file or if you are not confident enough then you could use a wizard "dpkg-reconfigure xserver-xorg" note you must be root to do this, if you are using a distro where it does not use root then type sudo in front of it.

use xmodmap

Thomas- where is the 'dpkg-reconfigure xserver-xorg' located? I couldn't find it.

dpkg=reconfigure is a Debian/Debian based package management system. So unless you use a Debian/Debian based distro this won't work. But basically to remap keycodes you need to use the Xmodmap file (either a .Xmodmap in your home directory or the system wide one). I forget how, but you can also remap keycodes at the kernel level.

oh poo, I forgot to mention that little aspect.

editing xorg config file
 

Do you know how I'd go about editing the xorg.config file to map a key on the keyboard to a certain function.