PR Activation

[NJ2NZ]

Hi everyone!

Just back from NZ after activation of our PR visas. I had assumed that the immigration officer would put a stamp with a notation like "Entry as PR noted. Applicant may also to travel to and from New Zealand for two years from this date, etc." Instead, just got a stamp which notes the arrival date in NZ and is identical to the one we received when visiting NZ some years ago. Because of the notation on the visa "upon application may be granted a permit...", I asked the officer just to confirm that that's all we needed - he said there's nothing more to it. My question to you all: Do I need anything besides the entry stamp giving a date (which is prior to the PR visa expiry date) and the two blue stickers to consider myself a resident with permission to travel in and out for two years, or should I have actually applied for a permit or some other document while in NZ?
Thanks.