Y2K? Nothing from Ford. But if you ordered the Ford towing pkg on your van back 15 years ago, then you have the wiring in place to plug in an aftermarket trailer brake controller. The current integrated trailer brake controller (ITBC) probably cannot be installed and work properly, but there are lots of decent aftermarket TBC that will work. I used a Drawtite Activator II for over 10 years with no problems. However, most folks prefer the proportional controllers, such as this one:
2000 Ford Van Brake Controller | etrailer.com
2000 Ford Van Brake Controller | etrailer.com