JohnD said:Have you got a multimeter? If not, pop up to the high street in the morning and invest in one, s/be about £8 for a simple one which is all you'll need.
Looking at the cables coming out of the wall, I'd expect the red to be permanent live and the blacks to be switched live returning to the light fitting. As my guess didn't work, test the wires in the mlorning to see what they do.
Can you refit the old switch, and do the lights then work? they shouldn't need the red link (usually)
Maplin are doing a multimeter for £2.99, but dose'nt include continuity tester