I think it depends on what you are trying to keep from being seen, While I am new to

, I see that our site is online from the get go, and thats fine, we are adding text and other pages, however, I noticed that parts of this are small sniplets of the page, if changing the over all theme is what your interested in doing, I suggest that you make those changes as you go, if your adding more product, click the hide and unhide switchs for those items, if your adding terms pages and the like, I suggest that you edit your pages using some other program like dreamweaver, or coffee cup, or front page, for example, you can add a front page web site on your hard drive and import your site into it, you can then edit pages, however realize that your

site will be differen as they use little sections to put together the entire page, while frontpage edits the page as a whole.
I also go in as Im editing my pages and then save the eliments to text files so I have a backup. That would be a good feature to download the text files for backup purposes, then you would have a better idea of what is going on. They really have a good system here, because you don't have to have alot of html knowledge to make very good looking store fronts.