Hi Emma,
You should get a file called PRINTOUT.TXT in the same folder as Congo is running. It works when I run Congo in the development folder but not (I just discovered) when running from the Program or Application folder on a Mac. I don't know why this is. Maybe, some kind of permission issue on the Mac that doesn't allow the file to be created. Try copying the Congo application folder to some other folder where you have full permissions (like your home folder).
If this doesn't help, you can send me the show file that you want to print and I can return the txt-files to you.
In the meantime, I have to dig deeper into this to understand why it doesn't work as it should.
Anders Ekvall
ETC Software and System developer