Have you tried this link: http://club.myce.com/profile.php?do=editproducts
The box on the left side lets you add products. If your product is not listed there, it's probably because your product is too recent to be listed in our database, or the product category is not included (yet). We're constantly refreshing and updating our database of products, so you might want to check now and then.
Thanks for your input though, it is very useful for us. Which products besides your Bose headphones are you trying to add?