The Economy.gfx scaleform file was updated during the 16th Feb patch. I have now got it working in game and you can see screenshots of the updated store below.
The store page itself is currently not implemented:
The backpack has been updated to be more in line with the DotA 2 UI style:
The loadout is still very work in progress, but hovering over the slots now shows a little popup:
The workshop page confirms what I talked about in my previous blog post about the future of the DotA 2 store will most likely rely on user submissions:
