[ros-users] Arduino and ethernet

I want to use an ethernet connection instead of a serial connection to my arduino mega 2560.

I know there is a package that does this but i don't know how to download it.

Here is the link to the source:
https://code.ros.org/svn/wg-ros-pkg/branches/trunk_cturtle/sandbox/arduino/

is it downloadable as one file?

Mano