Fumefx smoke and QMC GI via Finalrender?

[roman]

Hello,
I have a question regarding rendering smoke via Finalrender with QMC GI.
I'd like to achieve this (only with hdr or physical sky env..):
http://www.afterworks.com/FumeFX/finalRender.asp?ID=20
but I am always getting black results..
What are the necessary render, light or material settings to achieve the nice light scattering from hdr sky? I could not found any discussion or example scenes on the web regarding that.

Thanks,
R