Recording stuff through the mic socket

[computerman]

I have tried to record using the mic socket (usingprorgames like sound recorder, aocustica mp3 mixer) with analogue cables and microphones but it isnt picking anything up

However it does record any sound thats coming out of the computer

e.g if i am playing an mp3 then click "record" on one of the recording prorgammes it will start recording the song.

I have tried going into controlpanel>sounds and audio devices>voice tab> test hardware but it brings up these error messages:

http://www.geocities.com/chaopictures/CPtest.PNG

If those didnt work (usually geocities doesnt directly link) the url is
http://www.geocities.com/chaopictures/CPtest.PNG


anyone know what to do?
thanks