Step 1: Click the OS you are using and install the program with the default settings (Keep clicking Next then Install)
Step 2: Select the "Existing Account" radio button then sign in using the UN/PW provided by Boltonsmith and use "Central.crashplan.com:443" as the "PROe Server Address".
Step 3: Click on the "Change..." button in the Files box.
Step 4: Select the directories you would like to backup and click the "Save" button.
Step 5: Click the "Start Backup" in the Destinations box to start your backups.