Whatever you guys did, it seems to be working!!
Even though his dislocated hip wouldn't go back in today, everything else is improving.
He will have to have an operation to fix the hip back into place (does anyone have oodles of money to spare?) and will need to have 'cage confinement' treatment for 6 weeks or so to allow his pelvic fractures to heal but the internal bleeding is almost non-existent and the collapsed lung is slowly fixing itself.
Thanks for all the thoughts, prayers and/or crossed fingers but please keep them coming .. we still have to get through the operation (either tomorrow or Wednesday).