Update:
Worked Solution:
1) Move SKYPE app from Applications to trash folder.
2) Delete the file User/Library/Preferences/com.skype.skype.plist
3) Delete the folder User/Library/Application Support/Skype
4) Delete the file Macintosh HD:Library/Preferences/com.skype.skype.plist (if that file does not exist, never mind).
5) Download and install SKYPE 2.7.0.330 from
http://mac.oldapps.com/skype.php
6)
* IMPORTANT : Go to preferences and change the port from 0 to 8253, for example.
7) Login.
8) After you login for the first time, use the update menu option, and get the latest version.