LiveSurface images are Photoshop templates featuring perspective guides for 3D visualisation. They enable you (and ultimately your client) to visualise the subtleties of dimension, materials and printing processes without having to build paper comps. While there are many ways to work with LiveSurface images, this tutorial focuses on design exploration.
I'll show you how to bring artwork from Illustrator 10 or later into the LiveSurface image in Photoshop CS2/CS3 as layers and apply them to the surfaces of the image in 3D. The result will be a highly accurate packaging image, which preserves your artwork on separate layers. Finally, I'll touch on simple fills and filters that realistically simulate printing techniques. This introduction should stand you in good stead for your own exploration of LiveSurface.