My peugeot speedfight lights are not even coming on, help?!?

Hi,
Heres the deal, peugeot speedfight, liquid cooled 2001
I was driving home, stopped off at some lights and my bike started smoking.
pulled over looked around the bike, couldnt see any faults.
later that night when it got dark i soon realised my lamp had blew
changed the lamp, still nothing
i have checked the wiring loom, my indicaters work, and so do my side and rear lights.
as i say, new bulb
Ive been looking around, i see voltage regulators and loads of different things.
I don't just wanna jump in a buy every thing, i havent tested, and living in northampton, i have no local garages.
Anyideas?! please help