I'm having trouble getting this started.. any help?

Yesterday I bought a book -- Head First JSP's and Servlets because I wanted to learn about java could be used in web development. However I pretty much ran into problems from the first page. I seemed to fix most of them, But now a program that I made following the book's step-by-step instructions, doesn't appear on my http://localhost:8080/, instead I get told that the requested resource is not available.
What the program does is very simply display the date on the webpage, like i sad I'm just beginning. btw, I'm using tomcat5.5 as my server software, also this problem is more about setting it up properly and not so much about programming. Okay so the book told me to make the directory like this: tomcat5.5 -> webapps -> ch1 -> WEB-INF -> classes and in the WEB-INF folder I put web.xml (which is at the bottom of this post) and in the classes folder I put Ch1Servlet.class(the java file for this is at the bottom). Now this is the part I don't get. The book tells me to go to http://localhost:8080/ch1/Serv1 even though there are no files/folders that have the name Serv1. So this didn't work, and a couple others like/ch1/WEB-INF/classes/Ch1Servlet.class and /ch1/WEB-INF/web.xml. I was up to 4:45 in the morning last night trying to fix this; any help would be GREATLY appreciated.
web.xml:
<?xml version="1.0" encoding="IISO-8851-1" ?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
     http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
     version="2.4">
     <servlet>
          <servlet-name>Chapter1 Servlet</servlet-name>
          <servlet-class>Ch1Servlet</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>Chapter1 Servlet</servlet-name>
          <url-pattern>/Serv1</url-pattern>
     </servlet-mapping>
</web-app>Ch1Servlet.java
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class Ch1Servlet extends HttpServlet {
     public void doGet(HttpServletRequest request, HttpServletResponse response) {
          try {
               PrintWriter out = response.getWriter();
               java.util.Date today = new java.util.Date();
               out.println("<html>" + "<body>" + "<h1 align=center>HF\'s Chapter1 Servlet</h1>" + "<br>" + today + "</body>" + "</html>");
          } catch (IOException e) {
               System.exit(1);
}

asdfjava-er wrote:
The book that I'm using said it wasn't necessary for this because it's supposed to just make sure everything is working properly--which it's not.OK, if you want to ignore my advice, so be it, but please don't complain that it is not going to work without even trying it yourself.
asdfjava-er wrote:
Now this is the part I don't get. The book tells me to go to http://localhost:8080/ch1/Serv1 even though there are no files/folders that have the name Serv1.
Do you understand what the <servlet-mapping> declaration in the web.xml means? It is roughly just saying the appserver that it should port all requests on /Serv1 to the mentioned servlet.
a couple others like/ch1/WEB-INF/classes/Ch1Servlet.class and /ch1/WEB-INF/web.xml. The WEB-INF folder is not public accessible, so forget about that part.
"Resource not found" simply means that either the URL is wrong (case counts!) or that the resource is actually not there. I.e. not compiled, not deployed, not loaded, etcetera. Reading the appserver's startup logs might also help.

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