When starting the old darling up!!!!
The brake light bulb illuminates but only unitl you touch the brake pedal - its no big deal but just a little annoying if you know what i mean??
Any thoughts dudes and/or dudettes?
the brake lamp light should come on and stay on till you touch the brake pedal, it is a check, if you touch the brake pedal and the light stays on then you know you have a brake light out, thats why its there
with regards to your taillight and brakelights

1. Reverse lamp
2. indicator
3. fog light
4. tail light
5. stop/tail light
also make sure with number 5, its a stop and tail light so has to be inserted correctly, if you see on the side of the bulb, the metal bit there are two nipples one lower than the other, make sure these go in the correct way, if you have inserted them the wrong way round then it will blow either the tail or the stop light and leave one illuminated when headlights are on
hope that helps son