I up loaded a quick tutorial on how I render my images using doga.
LINK
DOGA L3.
To view the download page of DOGA, go to a translator site like
HERE. There is an option to translate website. Enter this
http://doga.jp/2004/programs/dogal/dogal3/download.html link and set it to translate from Japanese to English. It might take a few tries, but it will eventually do it for you.
Also Todd Z has posted on the DOGA english site forums several parts addon links. These parts are cool and a must have for any modeler using DOGA. You will have to sift through the Posts to find the links though.