Help Me, Please.. Login.jsp Error...

I have taken the whole source code from http://www.webdevelopersjournal.com/articles/logon/xml_jsp_logon.html.

Im using Tomcat and xml database. I have installed j2sdk1.4.1_02 and Tomcat 4.1. But when I tried to compile the logon.java, i receive errors: "package javax.servlet does not exist; import javax.servlet.* AND package javax.servlet.http does not exist; import javax.servlet.http*"

Why is this so? Please help me ASAP.... I have to hand in my project in two days time..

if anything, can e-mail me at jay_iza@yahoo.com.sg

Thank You So Much...

[581 byte] By [jayizaa] at [2007-9-28 18:29:11]