Wasn't it also the basis of vB Lite? Because some sites still run that even now, and a few will probably still run the pay for vBulletin 1.0
If it is, these might be some decent examples, since vB Lite seems to be a stripped down version of it (don't ask why people are still running software which is about 7 years old):
http://www.google.com/search?hl=en&q...22&btnG=Search
Edit: vBulletin 1.1.3 I think is still being run on a wide range of sites run live. I know that's probably security hell, but yeah, some sites still run the 8 year old software online in a production environment:
http://www.google.com/search?hl=en&q...22&btnG=Search