In order to activate your licenses browse to the file that was generated by the License Manager. This file should have the following format:
send-servername-datetimestamp.sync
After you choose the file, type the "captcha" text you see in the image and press the Upload File button. After a few seconds you should be prompted to save a file that is being generated. This file should have the following format:
recv-servername-datetimestamp.sync
Save the file and load it into the License Manager