Allen, it may not be possible. Don't forget that there's also something called informally The Wayback Machine, or the Internet Archive, a project to preserve states of Web pages that disappear.
Here's a link to a lot of old Sphere pages:
http://web.archive.org/web/*/http://ablemuse.com/erato
This is the reason the geek-types are fond of the saying "What goes on the Web stays on the Web."
I haven't read enough background to know if the folks behind this are willing to take things down, but perhaps we should find out.