This video addresses the Taming the Beast quest chain from the point just prior to Thotar provides a taming Rod to get a Dire Mottled Boar in Razor Hill. Thotar gives you a number of three taming rods, each differs and will allow you tame beasts in the subsequent order: Dire Mottled Boar, Surf Crawler and eventually an Armored Scorpid. Homepage

When you have accomplished the taming Section of The hunt chain, you have got to head to Orgrimmar and talk to Ormak Grimshot while in the Valley of Honor so as to unlock your companion pet handling abilities: Tame Beast; Feed Pet; Revive Pet; and Beast Training.

Lastly, don't forget to go to the Pet Trainer weblink and get the Pet skills that you will have to give to your pet.