Code:
<div align="center">
<center>
<p>
<script language="JavaScript1.1">
JavaScript 1.1 ??

and the align attribute and center tag have been deprecated for a long time.
Your images won't scroll because you only have three images, and they all fit within their container.
BTW Images don't have a name attribute (maybe they used to years ago..) and I'm not sure why you are embedding everything within a form.
BTWW That code doesn't look like it will work as it's only attempting to change the first image. If you Google I'm sure you will find
many examples - try the phrase "javascript image carousel".