I load .psd's as textures all the time -- always have -- in the texture creation process and Poser reads them just fine. The advantages are that tweaks can be made in Photoshop, the psd saved and then when rendered in Poser the updates are rendered as well. Makes it faster to adjust and tweak. The downside is that they are generally huge and so a resource hog. When the texturing process is complete, I save out as tif or jpg. I use Poser 4 and have been through Win 95, 98, NT, 2K, and now XP with no difference in the ability to load psd's