ingredients for T-Day dinner (Milan)

Anybody knows if and where I can find any real cranberries here in the city?
I'm gonna cook dinner on txgiving night for a few foreign and italian friends and would like to make my own sauce. Even frozen berries would do..

So far I've only found ocen spirit cranberry sauce in jars (thank god for those, anyway) at Esselunga on via losanna.

Also looking for canned pumpkin, but I know it's a long shot..

Any help would be appreciated.

Fab