1 Yes, there is a way to synch the online web site to the one on your hard drive, so you can make sure you upload any files you have updated. The manual indicates there is a way to create common HTML elements that can be used on multiple pages, boarders footers etc. Changes to the common elements would update all relevant pages. The interface is menu driven and requires no knowledge of HTML or programming. Stores are listed in Yahoo's shopping directory.
Pricing is reasonable.
You can create an almost fully functional store for 10 days and try it out.