Go to https://www.picoauto.com/download-software.html
and just above the download section you will see a line of textStable Release Release Candidate Beta Release
just click release candidate and you get the 6.7.20 version.
This will install over the 6.6.57 Stable Release.
Scopes not being recognised can be linked to running on a PC that hasn't seen all the Microsoft Updates, not been connected to the web for a period of time. This should have been addressed with this new release but will require the full uninstall of the Beta and Stable release before continuing if you have experienced this issue.