Did you set them, in "details" screen as builder (or healer etc)? With a few patience, you'll see the things changing, from "trainee" to "adept" for example.
For the healers, have a look here:
http://www.ldwforums.com/ubbthreads/ubbt...=true#Post74724
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My Story: Aika's Memoirs in Kitten's forum