Load the model into UVMapper and save model as a single group - new name. Open Painter 3D and acquire this model. Make sure that the X:Y ratio of the map you set is the same as the orginal template and select implicit mapping - select mesh on. The model window size will not affect this - window size depends on the speed of your computer - monitor resolution and how much else of the P3D UI that you want to see. The map will be upside down, but that is just P3D's way - you can flip the saved texture in your main PE but P3D probably has a way to do it also. Set a large number of undo's. Since you are painting at the seams - select a small size brush and spot click each paint dab. If you hit on a seam - P3D will streak a line from one side to the other across the map and the model - just edit-undo and go in more carefully. Once you figure out the brushes, this is a bit easier than switching between two programs and waiting for Poser to render. You can paint on your layer directly over the mesh and the paint will appear on the model. This way no streaking. There is the bit about getting enough light in the model window so that you can see what is happening plus rotating and zooming. But untimately this is a more efficient way to get it done.