Quote: "hmmm I'm a little confused here. In order for deep paint to work I already have to have a uv map on the object? So could I uvmap the entire model with a single color then modify it with this program?"
UV map with a single colour? No.. I don't think you quite understand what a UV map is (without meaning to sound very patronising).
You UV map the model, so that all the faces of the mesh are layed out in a logical order on a graph (axis U and V ranging from 0-1)
You'd have the chest, head , hands and so on assigned different areas of this map.
All that deep paint does is let you paint directly onto this UV map by clicking on the model. so, whereas if your arms and chest are in 2 different spots on the UV map, in your paint program you would have to fiddle about with say, stripes to make them line up on the arms and chest, Deep paint lets you paint the strip on the model, whilst calculating where this painted line needs to be drawn on the UV map.