A photograph of the back of one of the 1-gangs is he
http://www.flickr.com/photos/30588773@N04/2865124701/

The wires, from left to right, top to bottom, are

Blue; Blue/White; Orange; Green/White
Green; Orange/White; Brown; Brown/White

The wiring is the same on the matching socket of the 4-gang.

Looks like it's wired up totally wrong.
You need to look at the labeling under the wires.

Pin 1 is green/white.
Pin 2 is orange.

That's all wrong.
The pairs are all messed up.

You need to pull the wires out of the punch-downs and do them as everyone
has indicated. Use the colour codes I listed.

Check both ends.

--
Ron