October 26, 2009 Update: The links to the article on the AU Online site no longer work and have been removed. The article has been republished in this blog article. The link below to the drawing file used for the images in the article remains valid.
The September 2008 edition of the AU Quarterly Newsletter is out. This issue adds links to technical articles, along with the usual AU news, including one on creating Door/Window Assemblies and Curtain Wall Units with equal light openings.
You can find the file with the Door/Window Assemblies that generated the images for the article in this thread in the AutoCAD® Architecture Content Discussion Group.