Italic font indicates that you must substitute a value for the word in italics. You can often modify the parameter values, try it out. Make sure to backup the original HTML in case something goes wrong. After you have uploaded your files to the server, check the file's names. Make sure that all files have exact the same name as before the upload.
Caps make a difference too.
When a Java applet fails to load correctly, the browser will often display an error message that contains important information to the source of the failure. The error message is either displayed on the status bar, the Java console or both. Status bar messages are often sufficient to determine the cause of error. You may also wish to opening the Java console to get a full description of the error in order to report the problem to the author of the applet. If the security level is set to Custom, click on default level to set the options back to its default settings.