You might also inform them about MT-Blacklist. Not that the following doesn't give me great amusement:

http://www.development.umd.edu/ARHU/archives/000276.html

Ah -- Blank Main Page Syndrome. That's one of the many weird design decisions that went into Movable Type: in an out-of-the-box install, the main page displays the last "n" days' worth of posts, and "n", I seem to remember, defaults to 7. This means that you end up with a blank front page if you neglect to post to the weblog for seven consecutive days.

Happily there's a fix: set the Main Index template to display the "n" most recent posts -- those will stay put. Simply modify the MYEntries tag and add the "lastn" switch, eg:

[MTEntries lastn="5"]

(angle brackets for square brackets, of course)