I have a free trial of rhino 7 but the archicad components do not seem to be on this grasshopper version. Does the Archicad-Grasshopper connection only work on rhino 5-6 currently?
Officially yes and there is a talk we will be getting Archicad 24 talking to Rhino 7.
But currently, I have installed Archicad 24 into Rhino 7 and works fine.
Hope this helps.
Copy the Archicad Connection .gha at the Rhino 6 plugins file to Rhino 7 plugins file. Same folder, version 7, should work. Works fine for me.