Yes you can. You simply save the texture somewhere on your hard drive then assign the material map to the figure. On the menu bar, go to Render: Materials (I think this is it, I don't have Poser on this computer - it is the last option on the Render menu.) On the upper right part of the box, you can select the body part, and in the middle left part of the box you can indicate the texture map and where it can be found. When you take a look at the screen, you see it's pretty easy to figure out.