The Versions here are test versions - they should be fully functional, but may have problems - please MAKE A COPY of your novel file before testing it in these.
The latest version of the software will alwasy be the ONLINE version. At present you will need to update manually and uninstall old versions of the Offline software
Here are the local Install versions It MAY give you a warning on download, the software is safe, but not signed
You will need to unzip the installer and run the file - it should install on your system.