O.K., I found my notes, but they're pretty spotty. It looks like I was desperately trying to write down every word he said, but couldn't keep up.
So, my hastily scratched notes only say to tack up the pelt (I think I remember them talking about tacking them to boards), and then when it's dry, scrape it. I would have to google how to scrape a pelt, because I don't know how that's done.
My notes say to use a 'natural soap' (but I somehow remember them talking about bars of Ivory Soap), spread it on the leather and let it soak in, let it dry, and then rub it. I assume you must have to wet the bar of soap to get it to spread? Not sure.
The talk was on raising pastured rabbit and this was only a side note. It looks like I'll need to do some more research before I ready to try this!