Argile is like a part of Quidam : you can sculpt a character and then export it to a renderer (Bryce, Vue, Carrara, C4D, Lightwave....) or export a Poser Character, modify the shape, and then export it and get it back in Poser as a morphtarget (it works like a charm, no need to tweak anything).
You can also modify the textures of your Poser characters directly in 3D or paint a completly new texture on the object (the object needs to have UV coordinates applied on it but Poser characters and objects have it)

Cédric