If you're using WPP on the same machine as the server I believe you can just use Windows explorer to copy it into your images folder under Naigara\Stations\stationname\images and it will show up. You may have to stop the station or close & reopen the llibrary. What have you tried? If WPP is on another machine just open your local library and copy/paste into the remote library.
Second place is the first loser.