I would create a separate folder each time you back up using the date as the folder name
and save the files from the host into that directory.
also, do an export of the mySQL database.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.