Basically, yes. But very basically. Try it and render the result in Poser, you'll see what it looks like. It's better to scale the image you are going to use and then to work that into the template, working on the shapes and different items to get the look you want. A lot of detail can be added to the template that doesn't exist on the model. If you have downloaded some of the things from Poserworld, take a look at the texture's Rena has done for the clothing and you'll get an idea what needs to be done. It'll take a bit of practice because UVMaps can cause stretching but it can be done. Have fun. :)