Etsy Sellers: I just thought I should share with you an alternative way to add an Etsy Mini to your Fan Page while Etsy works out the kinks. Hopefully this will work for you as it did for me, it may require a little patience to get it to work.
Go to your Facebook Page and search for "My Stuff" (gigya) application. Make sure to put a space between the two words when you search.
Load the mystuff (gigya) application to your Fan page you will need to grab the Etsy Mini code to put in there.
Go to Etsy- At your Etsy go to the bottom left of the page and click on Etsy Mini.
Build your widget however you want to show your Etsy items from your shop or items from your favorites.
Scroll down to copy the code for flash.
Click or copy the code for the Flash version.
Go to the My Stuff tab on your Fan Page click edit and paste it in. It will show up in the My stuff Tab.
To move it to your Wall, Click on the boxes tab and click Add to wall.