Thank you for your answers so far. I am going to try to read that documentation, and see if somehow it is practical and usefull for my setup.
BTW, I have just noticed the Siamese software offers Picasso 96 drivers 
I'm very curious to see how the Siamese work for RTG. I have one with an ISA board somewhere but never had the chance to use it so far. I would have to revamp my old PC from 1999 to get an ISA slot.