Source code of Treeain Viewer

I am a student researching terrain and OpenGL.I want some document on this
field. Does any one have the source code of TEXSCENE program (directory
CH12 on CDROM come with the book OPENGL SUPERBIBLE - Richard S. Wright JR
and Michael SWEET).
If so, please send me one.
Thank you very much.

It should be somewhere on the same cd. Another wild idea is to look it up in the book.