If you cannot see the USB serial port corresponding to the Arduino device, you may also need to install the Virtual COM Port Drivers.
Download the Arduino IDE from arduino.cc and place the required libraries into the following location:
Mac OS X: ~/Documents/Arduino/libraries
Windows: %USERPROFILE%\My Documents\Arduino\libraries
Note: The Time library archive may extract to a subdirectory called Time, which contains another subdirectory called Time. The subdirectory is the one that must be placed in the /path/to/libraries location.
For more information, read the Arduino Libraries article.