Microphone

Hello all,
I am totally new to Arduino but know some stuff about programming. What I'm trying to do is have two microphones that play through the Arduino uno and then get played through a audio jack. But i don't have a clue on how to do it. any help would be appreciated.
Many tanks
James
the micro phone modules I've got are these ones

See http://forum.arduino.cc/index.php?topic=257894.0