"It seems to be a problem with e-frontier, that still does not have the SDK (Software Developper Kit) available for the people that would have to update the Transposer 2 plugin. So, the support is not complete. But the majority of improvements in Poser 6 were the internal render capabilities. You have to have Poser5 to point C4's Transposer part to, to use it." -Its a bit more then that I think. The SDK is available but from the rumors I have heard it costs more then the current value of Transposer (ie. they'd likely have to greatly increase the prize of transposer and thus make it beyond the reach of most that would use it) This is all assumption on my part from various comments I've heard.