That link did not work for me, but
https://www.unisys.com/offerings/clearpath-forward/clearpath-forward-products/clearpath-os-2200-software/clearpath-os-2200-express
got me to where I wanted to be.
One detail I wanted to clear before registering myself for the download,
what are the hardware requirements? The system I'd be using is 10 years
old, has an AMD Phenom processor running 64-bit Windows 10 with only 4GB
of DDR3 memory.
Disk space is probably not an issue but I'd need to make sure there as well.
I could buy a new system but there is one piece of software on that old
system which is uninstallable under Windows 10, it only works because
the beast is an upgraded Windows 7 Professional machine. I only use
part of that software's functionality and the fact that key functions
are incompatible with the OS is not a problem.