The following information might be useful in updating your logging software to recognize the Chesterfield Islands as a new DXCC entity:

 DXCC Entity Name:  Chesterfield Islands
       Start Date:  23 March, 2000
  Standard Prefix:  FK/C
          CQ Zone:  30*
         ITU Zone:  56
        Continent:  Oceania
       UTC Offset:  11 hours ahead
  IOTA Designator:  OC-176
         Latitude:  19° 52' (or 19.87°) South
        Longitude:  158° 19' (or 158.32°) East
Mapped Call Signs:  TXØDX (of course!)