Hello @Carrie27,
Do you see a view like the mulitcalendar one shown in the screenshot below?
If so, click on the name of the listing, shown to the right of the photo, to get the full month view.
If that' not the issue then you can contact Airbnb support.
Type "contact airbnb" in the "Search the community" box on these forum pages where you posted your question. Scroll down a little in the list of suggestions that appears and click on the "Contact Airbnb: A Community Help Guide[UPDATED]" one. That lists phone numbers and ways to contact them via Twitter or Facebook.
Steve.