I'm looking for all the images of the calendar, but with no success
Ahh, I found some nice stuff here:
http://www.chara-ani.com/list.asp?mode=t&tiid=100000847
A box for the light novels (with illustrations) and a poster
Hmm... it seems there was a manga of this too, but it was only a one shot manga (it got published in October 2004 issue of the shounen manga magazine
Dragon AGE). well, there is now a bigger chance for a real manga after the announcement of the anime ^_^
I'm adding
Stigma of the Wind as a translation to the first post of this thread.