It was a SilverLight site, so it would require you to have the server it was hosted on to actually have access to it. So the answer is likely no, there isn't access to it if the link is dead.
That said, the guide was aimed at being one of the first MB guides for the release of Wrath. There are likely some other guides created using TourGuide that are now available since Wrath has been out for over a year.
Hope this helps.
- Souca -
