This is XMLBoard. Three years ago I tossed XMLBoard up on SourceForge before I forgot it existed completely, and now I finally got around to making a little demonstrative website for it. Here it is.
XMLBoard is a Perl script which you can use on your website to create forums or bloglike things. It features an optional user registration system to allow for moderators and restricted access.
XMLBoard was created back in 2000, before you could do anything with XML, and before "blog" had entered the English language. It was better than the ubiquitous WWWBoard, which saved posts as HTML files. XMLBoard seems to have faded into oblivion in the past years, what with my completely ignoring it and the invention of the Google, but XMLBoard is still not bad if you want a simple message board to plug into your website without too much fuss.
This is an impostor.
Check out the project page for more information and downloads.