Hi JudyR-C,
Hopefully just to clear up any confusion - your website is stored on Square's servers not your desktop computer. If you have any item photos on stored on your desktop, all you are doing with those is uploading a copy of them to your website. After making any changes or adding new items, you can "preview" your work. If you're satisfied with what you see, then you would "Publish" it. Now your changes are live on the internet for all to see. Square has lots of online help for getting started - see this link for example. And you can easily search for topics you may have questions with. There is a learning curve and it takes some trial and error but, you will get there. I'm sure that some other Community Members can answer any specific questions you have moving forward.
