http://bugs.winehq.org/show_bug.cgi?id=27717
--- Comment #4 from Karl M karlmk@hotmail.com 2011-08-31 18:01:24 CDT --- A much simpler way to test this (guessing it is the same bug) is to download Skype 5.2.60.113 from http://www.oldapps.com/skype.php?app=0750fc9269ec32f685338e6841160c24 as that one installs.
After it is installed (you get some segfaults, and firefox opens with the home page of the skype client etc.) you go to Tools -> Options -> Audio Settings, and you only see "None" as the device for Speakers and Microphone.