[Newbie]Help me read data from a souns sensor

Hi all!!I have arduino board and a sensor shield as well as a sound sensor.How can i make a led light up only when i detect sound from the sensor?

and a sensor shield as well as a sound sensor

We'll need to know more about the sensor shield, the sound sensor, and how they are connected to the Arduino.

the sound sensor is http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200468405003&ssPageName=STRK:MEWNX:IT

the sensor shield is http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200472010972&ssPageName=STRK:MEWNX:IT

I have connected the sensor in the upper left sensor input.

Ebay is not a manufacturer. Those links are to expired auctions, and are useless.

Sorry but pictures are not shown there?

The picture flashes for a second and then goes away. The picture is not what is needed, though. Somebody made the part, and provides all the data needed to use it.

It seems that you either haven't looked at the data, or didn't understand it. Not understanding it is understandable. Not looking at it isn't.

If you looked at it, but didn't understand it, we can help you understand it. Post a link to it.

But a link to a picture is not enough in this case.

Ok here is a picture of it....Help pls as long as you can.Thanks.

Pictures of it are not much use, what we need is a link to the data sheet of what it does. Then you need to post a schematic of how you are connecting it up, Finally you need to post your code (using the # button) describing what it does and what you are expecting it to do.