Using LED display?

I just got an LED display for my arduino mega.
http://www.ebay.co.uk/itm/330811201937
How should I wire it? which pins are for which segments? and whats the voltage(maybe i should connect it to 3.3v out and then to digital while setting them as input?)?

This thread might help you:-

Here are some references on how to multiplex 7 segment displays:


I Think this is the best one:
http://learn.parallax.com/4-digit-7-segment-led-display-arduino-demo