If you are looking for the spinning dust code, you will find it here :
SpDust
The companion paper is Ali-Haïmoud, Hirata & Dickinson, 2009, MNRAS, 395, 1055 (arXiv:0812.2904). You can also read about the theory here :
--> poster (pdf format), presented at the Pasadena Foreground Conference in July 2008.
--> talk (pdf format), given at the Theoretical Astrophysics in Southern California (TASC) meeting at UCI in October 2008.
--> Talk (in French !) given at the Observatoire Midi Pyrénées in January 2009 :
keynote or pdf.