Art Credit: Image of Wheel of the Year was thankfully taken from www.mythinglinks.org where art credit says:
[Image] came as freeware from "Touch of Magic," a site that has now vanished.
14 June 2000 update: a week or so ago I found the same image on one of Mike Nichols' sites along with the following credit:
"Wheel of the Year" illustration by Joseph A. Smith (from the book Witches by Erica Jong).