MMM,
Make absoluetely sure that they put in the AN flight number on the BP rather than KD. I think it is only flights to ABX and Wagga (where KD originated from that KD flight numbers may still be used anyway).
When they use AN numbers I have had no problems (with NZ anyway), but sometimes the KD numbers are spat straight out but a friendly call usually sets it right.
So you should be fine.
Mark