If you are having issues with players not receiving the broadcasts then it is most likely a permission problem.
First check the configuration and make sure that the lists are enabled and that there are messages in the lists.
Fix any errors then reload the configuration.
If your players still cannot see the messages from a list then you must add automessage.receive.(message-list). Where (message-list) would be the name of the list for players to see.
I can't use apostrophes in my config!
To add apostrophes into your config you have to replace all apostrophes that you want to be displayed in the message with ''. This is due to the way that the apostrophes are read by the Bukkit FileConfiguration.
Need help upgrading to new configuration!
Backup your old config.yml by renaming the file
Install latest version of AutoMessage on your server
Reload or restart your server and let the new config generate
Copy each message over from your original config and enclose each message with ' '
Reload the config and verify that all messages have copied over correctly
Configuration being overwritten/erased!
Verify that you have the latest version installed
Verify if you are running the latest build of CB
Check your config for errors in YAML syntax. Try using an online YAML checker such as one here to debug your config.
If any of the above errors did not fix the issue please submit a ticket here with a paste of your config, any errors that occur and a description of the problem.