Before you can fix anything you need to know which service has not started, Apache or MySQL.
As the TEST PORT 80 utility is saying Apache is running its probably the MySQL service that has not started. Unless you have another Apache running!
So which service has not started???
If the wampmanager icon is not GREEN then one of the services ( Apache/MySQL ) has not started properly.
How to tell which service is not running if the wampmanager icon is orange.
Left click the wampmanager icon to reveal the menu-> Apache -> Service If the Start/Resume service menu is Green then Apache IS NOT running.
Left click the wampmanager icon to reveal the menu-> MySQL -> Service If the Start/Resume service menu is Green then MySQL IS NOT running.
If Apache is the service that is not running it is normally, but not always, because something else has captured port 80.
Now do, Left click the wampmanager icon to reveal the menu-> Apache -> Service -> Test port 80 This will launch a command window and display some information about what, if anything is using port 80.
Whatever it is should be re-configured to not use port 80 or uninstalled if you are not using it.
If port 80 is not the problem look for errors in the appropriate error log ( use the wamp manager menus to view the error logs )
If these do not exists or show no errors then also check the Windows Event Viewer Start -> Administrative Tools -> Event Viewer And look in the 'Windows Logs' -> Application' section accessed from the menu on the left of the dialog for error messages from Apache and or MySQL.
How to Configure SKYPE so it does not require port 80 or 443
Run SKYPE then using the menus do this: Tools -> Options -> Advanced -> Connection Un-Check the checkbox next to 'Use port 80 and 443 as alternatives for incomming connections' Now restart SKYPE for these changes to take effect.
If you are running Windows 8 SKYPE comes as an app and this cannot ( as yet ) be configured in this way. However if you uninstall the SKYPE app and install SKYPE in the old way, you can reconfigure it, and it works just as well.