Well, I've been very, very busy on the job and have been meaning to post this for about 2 months. I have developed a new cave survey viewer, a more modern UI and OpenGL graphics based. It might be another 6 months before the editor is built in, I've decided to work on some back-logged cave maps for publication in the next couple of weeks. Thanks for the interest.
http://www.resurgentsoftware.com/winkarst2010.htm
Garry