If you want to have a WC Banner here, you'll first need to have some Internet space where you are allowed FTP access. That usually means a place where you can install a web site. I can remember when I first had interweb access, the ISP actually "gave" everyone a few kilobytes of space! That didn't last long. Now it is a "Web Hosting Service" that you pay for.
If you already have that, it usually has an FTP access function. Then all you need to do is 'tell' the WC Menu->Tools->"Banner Generator" what data you want to use. More details if you need them. Be advised an Admin may move your post to another area of the forums.