It takes the little ones more time to settle and build trust in you.
The most important thing is to be patient and dont force it.
Dont try to touch or get your hand too close, but show him your hand and put it in his cage every day with his food.
My babies will not eat from a cup or will hand feed, free range crick hunting only!!
My Ambilobe male is only now starting to come out of hidding and sitting in the open and does not freak out when I offer him a cricket in my fingers, he wont eat it, but he wont run and hide either, which is a big improvement over a few days ago.
I have had him 2 weeks, and he was born March 2012, so dont expect much in the first week.