I updated my B7 tool for Amazon S3 and 7-Zip. You can now create buckets and upload files. You can still use it as a command line tool as well. I also re-did the user interface to what I believe a more user friendly version. This tool is free. Please let me know what you think.
Download B7 here.
To get started with Amazon S3 storage, click here.
Thomas Jaeger 