I guess he wants detailed instructions how to do everything. I have put together a script that will download and install CS2D in Ubuntu.
http://hc.tjoho.org/wiki/doku.php?id=downloads
Download and save the script to your home directory.
Open a terminal window and type: chmod a+x ~/cs2d.sh
Run the script by typing: ~/cs2d.sh
The script will download, install and launch CS2D in fullscreen mode.
Next time you run the script, it will see that CS2D is already installed, so it will launch it directly.
Hope that helps.