I have uploaded my index.html file but my website does not show in the browser, it only displays the original page with instructions created with my account ?

This is a common problem, you need to add or rename your "default: page. The "default" page is the web page that is displayed when no web page is specified. For instance, if you enter http://www.yourdomain.com there is no web page specified. http://www.yourdomain.com/page.htm specifies a web page.