Adobe Photoshop CS3 shipped on April 16, 2007 and is no longer hosted on Adobe Labs. You can find the latest information about Photoshop CS3 at the new product page on Adobe.com.
Photoshop Cs3 New Interface
CS3 now supports a new interface that’s slick and intuitive. Don’t worry, things are still in the same place, more or less. Photoshop is now dressed in collapsible Palette Panes. The palettes can be docked, minimized into icons (click on image at left for full view) or dragged out of the panes to perform the way they always have. This new interface really maximizes screen real estate and lets the application get out of the way of your work. The toolbox can now be displayed as a single column or the standard 2-column for those of us who resist change.
There are four mode of photoshop Cs3: