Finally I found an adress where I can upgrade my firmware while I wait. Nokia sent me an e-mail (quite a whlie ago) that an upgrade was available. Only thing I had to do was return my 9210 to the shop, and wait for a mere 2 weeks (!) for it to return...
Finally in Amsterdam it is possible to upgrade while you wait!
The adress can be found on thier site:
An appointment is not needed!
I'll be there within a week or so!
Does anyone have experiences with these guys, they sounded pretty friendly on the phone!