You should have downloaded the original program 'installklimb.jar', you can't skip straight the later versions without installing that first, and you only need to rename the file extension if your computer thinks it's a zip file and not a jar file, which shouldn't happen with the latest version of java installed. Can you check all the above and try again and post back with the results?
Thanks for your reply. Er tried downloading it on another computer and it worked,read it as a .jar file, and installed straight away. Will try that file at home and see. The other file I downloaded before was a folder with lots of files in, none which were and exe or installation that launched the installation. Will have a look and try and get it to work.
OK, found it now. I had overlooked the dot in the directory name. And can now report that, with no saved data & following the "easy" version of the instructions, V3 appears to work fine on a Mac.
Have you considered using VCS?
I know it's GPL'd open source, but do you mind if I import your updates there too?
I'm also happy to share the source code if anybody wants it, you'll just need to explain to me how to export it from netbeans.