you need to post a link to your site, post your code, or post a link to the site where you got the code. The more information you post, the easier it will be to help you and you will get the help faster.
have you looked at using jquery for this? I know of no script that does this kind of thing, but jquery might handle it. Most people in web design would tell you not to use a scroller because it annoys visitors. You might do better with a scroller that is user controlled.