Unlearned Armorsmithing... now what?Follow

I was somewhat unhappy with the Armorsmithing line, so I paid the 50g to unlearn it in the hopes of taking up Weaponsmithing. Unfortunately now I am unable to learn either. I have traveled to the trainers in several cities, and none of them offer the ability to choose a specialty, or offer the first quest to start training in said specialty. Am I missing something? I have unlearned Armorsmithing, but now what?

I think you have to talk to the guy in Ironforge, the one who offers the choice of specializing in armor or weapons. From memory - I haven't done BS since over a year ago - he's standing directly in front of the huge anvil and he's not a normal blacksmithing trainer.