I used the config.xml from a previous version but apparently the script can create it for you.
Check the line in the AutoSPInstaller file;
"AutoSPInstaller can now create this file if it doesn't already exist (based on the ConfigFile name), and use the values below for PIDKey and SKU"
Check the line in the AutoSPInstaller file;
"AutoSPInstaller can now create this file if it doesn't already exist (based on the ConfigFile name), and use the values below for PIDKey and SKU"