Help with the X11 app thingy?

[Kristenn]

I'm such a n00bcake with this I don't understand it at all. Can someone help me install this program (link) in Mac OS X? I looked all over and just don't get it. It says any Unix system running X11. >.>

http://www.teaser.fr/~amajorel/yadex/









Thanks in advance!

 

[John Doe 57]

http://developer.apple.com/opensource/tools/X11.html