For Windows Vista (Microsofts "USER FRIENDLY OS") the following steps are required to find the user profiles
Firstly you'll have to go to the control pannel to enable view hidden files in your folder options since "AppData" is a hidden folder.
Folder options, view, hidden files and folders - change to "show hidden fliles and folders"
My Computer\C:\Users\[your user name]AppData\roaming\skype