I know that several have been getting parts from the dealership in Florida for their Fiamma awning parts and accessories, but I have found another source (that may have been mentioned before), and I am happy with their service and/or prices.
It is mainly for those that own VW Westfalia's but they use Fiama awnings, they are in Texas.
Here is the link:
http://www.gowesty.com/ec_view_category.php?id=277