[ros-users] Ros arduino ethernet download

I'm using an arduino for ros and want to communicate through ethernet. There is a package for this:

http://www.ros.org/wiki/arduino

I just don't know how to download or if nescesairy install the complete package.

I tried wget but it only downloads one file that doesn't do much. I need to download the entire contents of the folder.

How do i do this?

Mano