JDBC With Postgresql - Can't find org.postgresql.Driver??

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/**
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* @author http://www.faqs.org/docs/ppbook/x20856.htm
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import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;

public class Test1 {
  public static void main(String[] argv) {
  System.out.println("Checking if Driver is registered with DriverManager.");
  
  try {
    Class.forName("org.postgresql.Driver");
  } catch (ClassNotFoundException cnfe) {
    System.out.println("Couldn't find the driver!");
    System.out.println("Let's print a stack trace, and exit.");
    cnfe.printStackTrace();
    System.exit(1);
  }
  
  System.out.println("Registered the driver ok, so let's make a connection.");
  
  Connection c = null;
  
  try {
    // The second and third arguments are the username and password,
    // respectively. They should be whatever is necessary to connect
    // to the database.
    c = DriverManager.getConnection("jdbc:postgresql://localhost/JTest",
                                    "postgres", "main");
  } catch (SQLException se) {
    System.out.println("Couldn't connect: print out a stack trace and exit.");
    se.printStackTrace();
    System.exit(1);
  }
  
  if (c != null)
    System.out.println("Hooray! We connected to the database!");
  else
    System.out.println("We should never get here.");
  }
}