When you create a new page, or open a previously published page for editing, Contribute creates a Draft. The page remains in draft form, accessible only through Contribute (and only from your desktop), until you've published it.
You can preview a page in your workstation's default browser at any time by pressing the F12 key. (TIP: If you get an "Access denied" message, place your cursor elsewhere on the page and try again)
You can save your draft work periodically (and this is always a good idea) as you would any other document: press Ctrl-s on your keyboard, or select File > Save from the top menu bar. Note: "Save" only saves into the Contribute software. To save a file externally, use the Export function.
If you want to exit Contribute and save your draft to work on later, without
publishing it, click the Save for Later button (circled
below). If you save your page for later, its title will appear in the Pages
menu on the left side of the Contribute window when you open Contribute
again.
You can discard a new page, or any changes made to a previously published
page, by clicking the Cancel button (circled below).

Publishing your page uploads it to the web server.

To save a copy of a page on your local hard drive (or elsewhere, outside the Contribute software), select File > Export while in edit mode. !!IMPORTANT !! Do not upload an exported page via using an FTP client outside the Contribute software. Export saves the HTML code only (no images, no style sheets), so there's a good chance uploading this way will break your page.