alastor - if you bought any of the V3 texture packs from DAZ (or from somewhere else), then you'll have V3 MAT files. They will be in your Pose folder. (I forget what the folder name is because I renamed the folder on my computer.) If you didn't purchase some texture maps, then you'll have to make your own texture maps or find free V3 textures and use those. (I don't remember off-hand if there's any free V3 textures out yet.) Poppi - you need to use V2 MATs for V3 to V2. The point of V3 to V2 is to use V2 maps. Therefore, using a V3 MAT will not work. It will point to textures that V3 to V2 can not use. As for the big iris morph - don't know what that is, so I can't help there. Hope this helps!