that's true gary - but with some of the links I get for example:

Forbidden

You don't have permission to access /tutorials/oct09/ on this server.
Apache/2.4.10 (Debian) Server at site.xaraxone.com Port 80
clicking the tutorials links directly seems to give this error... clicking on the breadcrumb links at the top for a given year seems to mostly work including for downloads, but not all - not that I have extensively audited it