Thanks, Johnny T. Sorry the other photo didn't show. Try this:
http://www.snapfish.co.uk/slideshow/AlbumID=33770950/PictureID=976497783/a=38121274_38121274/t_=38121274
I assume from what you say that I should do a multimeter test on the blacks before anything else?
I'm seeking some advice on connecting new light fitting to a pair of ceiling cables. You can see the cables and the light fitting connections at the following URL
http://www.snapfish.co.uk/thumbnailshare/AlbumID=33770950/a=38121274_38121274/t_=38121274 (let me know if you can't open this -...