DiagramIt from Dalriada

Does anyone know if the author of DiagramIt (and TableMate etc), George Buchannan of Dalriada Software can be contacted in any way? TableMate works on the latest hardware (with Aemulor) but DiagramIt doesn’t. I have a number of files created by it which may no longer be edited. The software creates a special type of Draw file, but Draw can’t edit it.

CJE Micro’s have been trying to contact him about the sources for TableMate, with varying levels of success, for some years now! I gather that his RiscPC with sources on is supposedly on a different continent to him at present!