yeh, went for a drive the other night, came home to see my parkers, tailights and number plate illuminator out of action,

i have checked and swapped every single fuse and changed the globes, they still dont work. My brakelights and headlights all work fine.
I was having a fiddle with that switch on-top of the steering column and it seems abit stiffer than normal. If this switch is buggered can it affect the taillights? And maybe is there an in-line fuse somewhere?
Oh and i have done some extremely suss wiring, like wiring up some driving lights to the parker wire, so the driving lights come on when the parkers come on...
Help me please
cheers
Alex