Making Keyboard to work in linux

Dear all,
I have the logitech internet navigator keyboard and I would like to make it work with my opensuse.
Actually not all of the extra keys work (like mute button)

I have found this guide
ウォルフ〜WoLF](http://www.hafenscher.net/wiki/index.php?page=Logitech_Internet_Navigator_keyboard_under_Linux)
and I would like to ask you (as it looks to be a little outdated) if there is something that might have changed during these years in opensuse.

B.R
Alex