Attached Link: http://gray.ballarat.net.au/cgi-bin/make_waves.pl

His program generates the same terrain map unless you want to play around with his settings. But he gives you the gray scale map itself at the link in his tutorial. It's the one I posted on top of this message. Download the map, save it and load it into the terrain editor. You don't actually run the perl script in Bryce, just use the image it created.