The "
Vampire, Vetala" is a template so its found under the "
Classes" tab. Before looking for it do as Bodrin says and do "
CTRL-K" and make sure the "
Inner Sea Bestiary" is checked marked first.
It sounds like your going to be doing the work of inputting an Adventure Path. Before you do so beware that the "
Community Bestiary" has all of this done already for you. And for your players they can install the "
Community Player Pack".