Thanks for the reply.
I'm talking about "Terrain Rendering" sample from "Direct3D 9 Sample" section. It used to be on this http://developer.amd.com/media/gpu_assets/TerrainTessellationSDKSample-v1.0.zip link. At the time of making a copy of this page by "Web Archive" files larger than 10 megabytes was not fully preserved. I could not find a copy of this archive, and therefore wrote on the forum in hope that it is may be in the archival copies of the site.
Andre