I know that Tanit-Isis has commented on this recently as "a tragedy of immense proportions", but for those who have never visited vintagesewing.info, you really do not know what a wondrous and extant sewing resource we just recently lost.
I wish I knew the reasons for and the way to resurrect the site, as it literally had books and books of information available on vintage sewing techniques and styles.
RIP, Vintage Sewing Info. I will be ever regretful that I couldn't save you for the world's enjoyment. In the meantime, I hope you'll find a way to get back on the web and back to giving me all the answers for my future pattern drafting endeavors.