I've listened to most of the recordings for 3/7 and 3/8, and can't find that flight on Kuala Lumpar / WMKK ATC. Am I not looking in the right place or is it gone? I remember that the original news report said it "lost contact" with Subang (or Sepang?), so he took off under WMKK who passed him to that SZB and then contact was lost or? I couldn't find ATC for the "Sultan Abdul Aziz Shah Airport" aka SZB.
Scan through previous posts and you will find that the aircraft was on another frequency than the one archived.