I\'m running Windows 7 with PowerShell 2 installed.
I\'ve downloaded version 2.1 from here - http://pscx.codeplex.com/releases
The Release notes say
I hadn't actually completed the last step of my above question completely which turned out to be the answer.
Here is that answer for completeness
Pscx-2.1.0/Pscx-2.1.0/{lots of files}
Pscx-2.1.0/Pscx/{lots of files}
(Get-ChildItem Env:\PSModulePath).Value
and note the modules folder location.Pscx folder
to the Modules folder location given above.