Can't Install Millipede for Grasshopper

So I have follwoed all of the advice from the forum here: I cannot install Millipede - Grasshopper

This includes:
-Have unblocked all the files and ensured they’re not read-only, but still am not getting the millipede tab in Grasshopper
-Have also installed Genoform

I am using Rhino5 and the latest versions of Millipede (as far as I know).

Any advice on what I am doing wrong?