Cryo/Pyro: They'd gain the Cold or Fire subtype, as appropriate. They'd also gain a breath weapon that deals 3d6 damage (again, cold or fire), ref save for half (DC 10 + 1/2 # of heads + Con mod, or DC 16 in this case). Breath weapon AoE are lines 10' high x 10' wide x 20' long, one from each head. All heads breathe at the same time, and the breath weapon has a 1d4 round recharge period.
Adding Cryo or Pyro does not, for some reason, adjust the CR of the creature. Just its LA.
What was the other question? +1 template?
Edit: Heh, and thank you everyone for the kind words. Most appreciated. ^_^