My iTunes can't read my iPod!!

Hi, I own an old iPod. I don't know exatly what's the model, but it's a 2005 nano. I have always synced it with my itunes without any trouble. Today I updated my itunes (last update)and when I connected my iPod it gave my this message: "use itunes to restore". But I can't even find it in itunes, it won't read it. Does this have anything to do with the itunes' update? so, I won't be able to sync my iPod with futures itunes?
Any help is appreciated.