Zilla is a free photo/video backup assistant that helps you to keep your memories backed up to your Flickr account.
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The name in your Flickr account and the ID that you use to log into Flickr with are two different items and can be spelled differently.
Your login ID is nothing more than the username and password that you log in to Flickr with.
Your Flickr screen name is your public name that everyone sees in Flickr.