This post is old, so what you see here may not reflect my current opinion and mindset, certain information may be outdated, and links may be broken.
Look to the side, and under Theme Switcher, you will see a new link. Click on V.18 Metropolitan Impulses to change layout. ^_^ While normally I make the newer layout the default one, I love the bunnies one too much to make it default. However, the end user, you, can change it if you wish. And if you do not like it, you can still change to the older ones. ^^ I love this theme switcher plugin!!
Let me know what you think of the new lay!