V4toV3 uses the V4 textures and the V4 head morphs. It doesn't have any body morphs, the V4 morphs don't work as the figure is grouped differently to accommodate the V3 rigging (and anyway, the V3 clothes wouldn't support the V4 morphs): all it does is allow you to put your V3 clothes on something resembling your V4 characters (head shape and textures). If you want to use a character made for V3 you would need the V3 base (free) and any morph sets the character required.