Hi
Either you can download the JSDK (
Java Servlet Development Kit) as an extension to your regular JDK 1.2.2 (or 1.3) download.
Alternatively you can download/install the
J2EE version (Java 2 Enterprise Edition). The Enterprise Edition gives you the Servlets API and a bunch of other neat stuff. Just make sure you install it AFTER you have the Java 2 Dev Kit installed. You need both "Java 2 platforms" to work properly. (JDK and J2EE)
Hope this helped.
All this can be foound at
http://java.sun.com