If you already have it installed, and it's the mic levels you're having problems with:http://linuxforums.org.uk/index.php?topic=10313.msg76522#msg76522
(is that the one you mean ?)
if you HAVEN'T got it installed, you'll need to activate the "Partner" and "Independent" repos in Synaptic .. THEN install skype.
Once you have PulseAsudio installed, you can go to:-
menu>Sound & Video>PulseAudio Volume Control>Input Devices
and mess with the mic levels in there (mine are left=79 right=17)
but you MUST have told Skype NOT to automatically adjust the mic.
(explained in the link above)