It will help you to update you with your reputation earned.
To set your image just edit the resources.properties file
Here are the settings for my stackoverflow flair. Set it for your flair
#URL of the image file to download downloadfile=http://stackoverflow.com/users/flair/3626698.png?theme=dark #URL to be browsed on click browseloc=http://stackoverflow.com/users/3626698/afzalex
Technologies used : Java