html error 404 page not found

<%@ page language="java" %>
<%@ page session="false"%>
<%@ taglib uri="/WEB-INF/tld/wall.tld" prefix="wall" %>
<%@ page import="java.io.IOException" %>
<%@ page import="java.net.URLEncoder" %>
<%@ page import="java.util.Enumeration" %>
<jsp:useBean id="util" scope="request" class="com.bc.agp.AgpUtils" />

<wall:document><wall:xmlpidtd />

<wall:head>
   <wall:title>Processing...</wall:title>
   <wall:cool_menu_css />
</wall:head>

<wall:body>

<%!
	static final String AGP_URL = "http://wap.mygamma.com/agp/7920/?";
	
		String akey = "";
		String itemdesc = "";
		String gmdvalue = "";
		String agpServiceId = "";
		String urlParams = "";
		String parameter = "";
		
		Enumeration enu = null;


%>

<%
		
		itemdesc = request.getParameter("itemdesc");
		gmdvalue = request.getParameter("gmdvalue");
		agpServiceId = request.getParameter("agpServiceId");
		
		enu = request.getParameterNames();
		
		response.setContentType("text/vnd.wap.wml");
		
		while (enu.hasMoreElements()) {
			
			parameter = enu.nextElement().toString();
			
		    urlParams += parameter + "=" + URLEncoder.encode(request.getParameter(parameter), "UTF-8") + "&";
		}
		
		akey = util.generateAkey(agpServiceId);
		
		util.storeUrlParameters(akey, urlParams);
		
		//This forwards this to Buzzcity AGP
		response.sendRedirect(AGP_URL + "gmdvalue=" + gmdvalue + "&itemdesc=" + itemdesc + "&akey=" + akey);
		
%>

</wall:body>
</wall:document>