This design is called "Ferris Wheel" and it's available under Creative Commons Attribution 3.0 Unported License. AND YES: it's a 3 column blogger design. The image is by Martin Walls and you can see more of his images here (they're awesome).
The design is free and works with "new" blogger - ie: it's an XML template. Please ensure that you backup your widget data, as installing a new template will wipe/erase your current widget content.
- Download the XML template: here (zip)
- View more Blogger templates: here
- Need help installing this? Click here