When you received your license key it included a link to download the Pro version of SpeakOut! Once you have reached version 104.1.0 you shouldn’t need to do it manually.
This should then be installed by downloading the latest Pro version from https://latest.SpeakOut.123host.net.au
Then using cpanel or wget or FTP or however, upload speakout.zip to
wp-content/plugins/speakout and extract all the files.
If you have already entered your license key that should be all you need to do.
Otherwise, the menu is limited to only entering a valid license key. Once that has been done, you will have full SpeakOut! functionality.
If you have any problems upgrading, contact Steve.