I've just received my new Nokia N73, an upgrade from my Nokia 6600. I have around 80 text messages saved in the "My Folders" section of my 6600 and I really, really want to keep them and transfer them to my N73.

Is this possible?

And if my old SIM card is eventually deactivated, would I lose access to the messages on my 6600, or are they stored on the phone memory?

Thanks in advance for any assistance.