How To Access Google Storage

Hi,
 
I'm trying to access Google Cloud Storage, an S3 compatible service, using commondatastorage.googleapis.com as the host, & My secret access strings as my username/password, but I get 403 forbidden errors.
 
How do I access my Google Storage account in SmartFTP?
 
Please advise.
 
Thanks,
-F

This is currently not supported. "S3 compatible" means that it is similar to Amazon's S3 but it doesn't work out of the box without significant changes.