It sounds like a reasonable explanation to me, so I'm glad it was resolved amicably. I'm guessing that people can legally use Posette's hands in their Poser models if they refer to Posette's hand geometry via a PCF file (somehow), and they don't include Posette's hand geometry in a file for sale. But it's simpler to do as you did and redesign the hands "de novo", to add your own creative touch to the model.