I have a Mac with OS 10.2. I need install X11 on it for the purpose of running GIMP.

I downloaded X11 from the Mac Developer Page and located a download page for the
2002 version of the Developer CD that works with OS 10.2.

According to the Apple Developer Web Site for X11 info. at
http://developer.apple.com/opensource/tools/runningx11.html

It states:
"Note: Installing X11 on pre-Panther systems requires manually installing XFree86 and XDarwin.app from the Sourceforge "XonX" project. "

It gives a sourceforge link as http://sourceforge.net/projects/xonx.
Going to this link gives a download link for XFree86  in .dmg format but not for XDarwin.app. In fact, this site says nothing about XDarwin

Further research just confused me. I need to know how to install XDarwin.app on my machine.

How do I do this?

Thank you.