Installing Big Business Client 14 is the last step to connecting to a Big Business Server.
On you local client computer open a browser, go to https://bigbusiness.com and on the Download tab click on Mac Client, Windows Client, or Client SDI (multiple window). For Security, on the Mac go to System Preferences, Security and click Open Anyway. For Windows, click the Ellipsis ..., Keep, Show More, Keep Anyway, and Open File.
Run Client, wait for the Connect dialog and on the Custom tab enter a Name and the Public IP Address of your AWS Server. Contact firstname.lastname@example.org for help.