Are you using the switch that came with the Painless harness, or one you had in the Bronco already?
I'm pretty sure that the original switches are no longer available in large quantities at lower prices, so most companies sell an "upgraded" switch from '80's and newer Fords. Maybe check the diagrams for newer Ford trucks to see if it matches what you have?
The default is to use the Painless instructions with their switch. But if a supplier changed the design again, or they accidentally shipped the wrong switches in the kit, this might explain any discrepancies between their diagrams and their switches.
If you're running the switch that was in the Bronco already, perhaps because it was fairly new and known to work, that could easily explain why the diagram does not match.
Paul