Xaero was a little wierd about eating the first couple days. I read that if they are giving trouble eating in a box or bag, then try dangling the f/t in front of the hide in thier cage. That worked for me, but I didn't want him eating in his cage since they can get in the habit of striking at anything that comes in the door after awhile.......
So, I got a large cardboard box and put some turf down just like in his cage to add familiarity and comfort. Of course if you use bark or something like that you'll want to skip that step as he could ingest some and then you're gonna be worried.
Anyway, I put the little rat in first for about ten minutes or so to get his scent everywhere. Then I put the bp in and he searched the rat out and gobbled it post-haste!
Hope this helps, works for me at least. Had my bp for three weeks now and he's eaten every five days or so with no sweat. (knock on wood!)