how to install dynamic background 0.1.0 in ubuntu natty

So,what is dynamic background?
From developer's mouth--

Dynamic Background is a small tool which aims to automatically download and update a dynamic/live desktop background in GNOME with images from a RSS source, currently Bing. So if you like the images from "Bing Dynamic Theme" or "Bing Maps Aerial Imagery" for Microsoft Windows, you will love Dynamic Background for sure, because it uses the same RSS sources for the images.

To install version 0.1.0 in ubuntu natty,type the following in terminal--

sudo add-apt-repository ppa:davidcaste/dynamicbackground
sudo apt-get update
sudo apt-get install dynamicbackground