So, this means that also my flight on the 25th had to be moved to a later date ... argh! Grmbl!
However, as the flight couldn't be changed online, I phoned the KLM-office. The person I talked to said he could arrange the change in my flight, and also take care of my bike-transport in the same aircraft :). But now I am not changing again!!!
Amsterdam-Schiphol - Kuala Lumpur International (flight KL0809):
April 24th, 20:55 - April 25th, 15:00
Kuala Lumpur International - Auckland International (flight KL4113):
April 25th, 21:10 - April 26th, 11:20
Auckland International - Kuala Lumpur International (flight KL4112):
June 19th, 12:50 - June 19th, 20:15
Kuala Lumpur International - Amsterdam-Schiphol (flight KL0810):
June 19th, 23:05 - June 20th, 05:45
(all dates and time mentioned correspond to local time-zones).
This shift in departure-date has also a positive side, I've gotten more time to prepare everything for the trip. After reading another blog  the thought to ride on both islands has gotten back into my head, however I read a lot of contradictory information on transporting a bike by coach in NZ. And on the website of one of the largest coachliners in NZ I can't find any information on the transport of bicycles on coaches. Thus, another action on my to-do list before departure ...
That's all for now, hey!
 http://www.audreytracks.nl/nzverslag.htm (Dutch)