I agree w/ what tttaylorrr says.....
I think as your BP becomes settled in his/her enclosure, they'll become more confident and you'll see a more aggressive food response. Mine has skipped so many meals in the beginning, only taken food when I wasn't in the room, etc......
Now he takes food like a champ! Good luck, be patient and try not to stress out. A couple skipped weeks isn't the end of the world. It will just make them hungrier until you offer again!