your doors creak? or do the hinges creak when you are opening them?? 
Literally 5 minutes ago i've sat in every seat in the car and poked, pushed, pulled all 4 doors, i've now found thats it's the off side rear door which is making a majority if not all of the noise, it seems to be able to move around an alarming amount!!
I think a trip to the dealers is in order before my nan falls out the car!!!
Is there much adjustment in the hinge or latch?
Cheers.