34014 oscommerce custom search

I have an installation of osCommerce, and I've added buttons like this: $3, $5, $10, $15, $20, $25. I need each button to search the site and return all matching results, for example on the $3 button when clicked, it would return all items with a price of $3. The table where these buttons are is also a bit off, looks fine in FireFox but has a small gap in IE, would like to fix that as well.