F-150 lights / Electrical problem...

I really hope you can help.
I have a 2003 F-150 Super crew cab truck... the lights are working but the break lights, blinkers and hazard lights are not working... to make the problem even more of "a problem" if you but the high beams on, the right turn signal indicator light on the dash comes on and blinks really fast and makes a buzzing noise. it's as if there's a short in the control arm... in addition, the "third or added light" over the cab does break when it should... just not the rear lights. is there anything I can do to keep from having to pay $80+ just to have the dealer put the truck on a machine to assess the problem? thanks! you can write me at captnron1968@yahoo.com