Nraas Mod question, Vampire not aging like she should.

[Preciousgamer]

I turned my sims into a vampire and when I looked at her aging it said Never.  For the life of me, I can't find where to change her option to enable her to age.  When I turned her back into a human, it still says "never".  Has anyone gotten this before and how do I fix it to make vampire to age like normal.

[gcgrad]

There is a short discussion topic about this subject over at the Nraas site. http://nraas.wikispaces.com/share/view/69344644
Long story short though is that you have to change it in the Vampire caste in Story Progression.