the wiipdf, you need to do a package request for it, same for wmdemo and wminput
libcwiid and wmgui are in repos and you can install them with synaptic now
the other modules like bluez is already in repos if not already installed
you need a bluetooth adapter and a wiimote to do it
follow the steps but forget the sudo crap, see if you can detect the wii in the way it is mentioned, follow the other steps
the article is from 2009 and we are almost in 2012, some things might have changed
as you see, based on that article the uses you can give to it are limited and the precision leaves alot to desire afik, so if it works, don't expect much from it