Let's see if I can help a little.
Generally, the designer will give you access to some sort of guest forum, could be a Facebook group, could be a private forum.
Most will give you a heads up at some point during the week what you might expect to see.
You'll usually get download links to the product and they'll let you know what their deadline is for their newsletter, etc and how they would like to receive the layout. Might be a photobucket link, uploading to a shared Dropbox folder or even emailing to the designer.
Does that help a little?
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