https://www.youtube.com/watch?v=KPKNAC7ajRA&list=UUnKnNL2t7ZJu8riCwqwWg-A
This is my explosion test using Cycles
I hope you enjoy it and find it useful!
Software : Blender 2.72a
Author : Wender Silva
Sorry my bad english, I'm brazilian..
You may be using gpu. if so you will see no smoke. Also make sure you are in the proper cycles or blender reder.
Cool, But it only rendered the PARTACLES, no explosion... It probably is a setting i have or something the rig looks fine in the videos and images you have.