rrrgggg... okay, too quick on the draw.
I see. the iTunes app *is* the Store. When I run the iTunes app, it has a Library button in the upper left that takes me to my rented movies directly from the store.
The confusing part is that when I click the Store button from the Rented Movies interface, the store interface appears but the button in the upper left now says "Genres".
So I can:
- open the store (iTunes app), then go directly to rented movies (library button)
- open rented moves (Videos app), then go directly to the store (store button)
But I can't
- open rented moves (Videos app), then go directly to the store (store button) then go directly back to rented movies (the library button is now a genres button).