When you upload a new Web page, the change takes effect immediately. If you don't see the change in your Web browser, it's because your browser has cached the previous version of the page — that is, it's showing you an old page without contacting our Web servers in an effort to speed up your Web browsing experience. This is the normal way Web browsers work, but it causes problems if you're trying to view a page you have just changed.
Other people visiting your site almost certainly aren't having the same problem, and it will eventually solve itself on your computer, too. However, you can also hold down a special key while clicking "Refresh" or "Reload" in your Web browser, which will force it to contact the server to get the latest version of the page.
If your Web browser is Microsoft Internet Explorer on Windows, the special key is the control (CTRL) key, so you would hold down the control key while clicking the Refresh button in the toolbar.
If you use Microsoft Internet Explorer or Safari on a Macintosh, or you use Mozilla, Firefox, or Netscape Navigator on any computer, the special key is the shift key, so you would hold down the shift key while clicking Refresh or Reload in the toolbar.
Here is a Web page page that explains the issue in more detail if you're interested:
http://www.newhopepa.com/tekkorner/11-01-00.htm
If you still have trouble after doing this, deleting all the files in your Web browser's cache may also help. This page explains how to do it for all major Web browsers:
http://is.asu.edu/instruction/training/clearcache.html