Once you have uploaded the picture to this site, Try copy and pasting the top line of text(under you picture in the photo gallery) to your message, looks like you haven't uploaded since 07, click the photo gallery tab and figure it out.
You know everyone's gotta want to see a pic

what type of nana? Unlike bulbs rhizomes and tubers roots; I would think Corms would be more susceptible to rot and disease during the winter with exposed corm to the elements, I have little experience with overwintering Bananas. Where the Pros at? chime in anytime