1997 Ford Taurus vehicle lighting system

I am trying to help a high school kid with little or no money to fix his problem. His headlights stay on all the time and he has been driving around and pulling the fuses to turn off his lights. I noticed, and he did not know that his tail light are not working when his headlights are on. He has been very lucky not causing an accident or been arrested. I started by pulling out the head light switch and checked for hot wire feeding the switch. I then commenced jumping from each connection and found that all lights work when hot wire is run to each connection. I also found when hot wire is jumpered to one connection the headlights go out and stay out until you turn them back on with the switch. Also all dash lights are also off until you run a hot jumper to correct connection. I figured the problem was in the switch and we checkecd with Ford Dealer and switch lists for $240. He called around and found a used one for $25, but this did not correct the problem. Any help would be appreciated and I will donate to help him out as he and his mother struggle to make ends meet. Thanks for you help. Having trouble with accepting donation section. Please e-mail and I will donate.