Trouble is drand, the wires on the holder are in different places !!! to the original.Do you have the old bulb holder to compare against? The thing to do would be to wire it so the same wire on the loom goes to the same position on the bulb holder, then you can't go wrong.
Wahay!!!!! Took your advice drand, I now have a pair of working headlights - cheers bud. I owe you a few pints if we ever meetOk. A h4 only fits one way though, so you might be able to work it out if you can tell which pin goes to which wire. (appreciate that night not be possible).
You would be unlucky to blow the bulb if its wrong but could use an old bulb in case.
Fitted my Osram gold, special edition, super duper nightbreaker bulbs today, I'll try them later when I go down the pub.
Reading the guff on the back, even the manufacturer says they have a short/ish life compared to standards, we'll see.
That glow you see in the sky tonight will be me, or the Northen lights.