The question shouldn't be whether the tubes are PVC or Hypalon, but wether they are PU or Hypalon?
All new Tornados nowadays have PU (Polyurethane) tubes. These can be be recognised easily as they retain there colour and shine, whereas Hypalon fades and dulls with age.
I posted detailed gluing info back along here:
Also try contacting Laurence Lock at Barnet Marine (firstname.lastname@example.org). He knows everything there is to know about Tornados.