TurboPrint & PrintFab

The ReadMe says OS10.5 or higher.
I'm running 10.5.8
When I click the installer I get:
You cannot use this version of the application Install PrintFab.app with this version of Mac OS X.
Is there an older version available?

Hello,

the current version PrintFab 2.97 is compatible with macOS 10.9 - macOS 12.
For macOS 10.5 - 10.8, you can use PrintFab 2.95 - see the version history for details:

https://www.printfab.net/history.html

You can download older versions at

https://www.zedonet.com/download/printfab