Assuming you already have a Windows Azure account, the next step after installation is proper Windows Azure credentials setup.
1. Start the 'azure-shell.sh' on OS X or Linux or the 'Windows Azure cmd' on Windows. You should see a warning like the following:
WARNING: Your Azure account was not imported yet.
Please run the 'azure account download' command to import your account
2. Run the command below:
$ azure account download
info: Executing command account download
info: Launching browser to http://go.microsoft.com/fwlink/?LinkId=254432
help: Save the downloaded file, then execute the command
help: account import <file>
info: account download command OK
$ azure account import publishsettings_file
info: Executing command account import
info: Found subscription: 3-Month Free Trial
info: Setting service endpoint to: https://management.core.windows.net/
info: Setting default subscription to: 3-Month Free Trial
info: Use "azure account set" to change to a different one.
warn: The 'publishsettings' file contains sensitive information.
warn: Remember to delete it now that it has been imported.
info: Account publish settings imported successfully
+ Enumerating locations
info: account import command OK
That's all! You can now start launching and starting Azure images on your own. Take a look at this quick guide to get started with WordPress, Drupal or Joomla! in Windows Azure with BitNami images.