Url Rewriting; 404 not found on deployment server

It supposed to be that using httpModules could rewrite Urls to be handled by ASP.net engine, and then write .ashx handlers to return intended files; all of this without any physical access to the server. For my website I have written httpModules and [.ashx] httpHandlers for .apsx. .xml, .xap, and image files. All handlers work pretty much the same way: "category" directory is imaginary; remove that from uri and return the file. For example: ~/category/default.aspx returns file at ~/default.aspx

This website works perfectly in my testing environment. However, on the deployment server (godaddy, shared) if I use Url Rewriting (my request starts with /category) only if I requested .aspx page it gets returned; all other types return 404 not found!

http://www.shopstaple.net/category/dzDebug.aspx

returns default.aspx (good)

http://www.shopstaple.net/category/ClientBin/GeneratedImages/dzDebug/Metadata.xml

returns 404

http://www.shopstaple.net/category/ClientBin/GeneratedImages/dzDebug/dzc_output_images/sunset_files/9/0_0.jpg

returns 404

I looked in the web.config and saw <system.webserver> did not duplicate everything in <system.web>, so I added the handler

Why .aspx pages reroute fine, but the types handled by a .ashx each (.xap, .xml, .jpg), return 404?

<add name="zzzzashxHandler" verb="*" path="*.ashx" type="System.Web.UI.SimpleHandlerFactory"/> to it. I published that to the deployment server, and still no luck. Can anyone tell me how to find out what is wrong?

Deployment server: shared server, godaddy, [most likely medium trust, ] ASP.net 3.5, IIS7

Here is a simplified version of my web.config. I might have errors in <system.webserver>:

<configuration>


	<configSections>
		<section name="rewriter" requirePermission="false" type="Intelligencia.UrlRewriter.Configuration.RewriterConfigurationSectionHandler, Intelligencia.UrlRewriter"/>
		<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
			<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
				<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
				<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
					<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
					<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
					<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
					<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/></sectionGroup></sectionGroup></sectionGroup></configSections>


	<rewriter>
		<rewrite url="~/(.+)/DeepZoomProject\.xap" to="~/XAPHandler.ashx"/>
		<rewrite url="~/category/ClientBin/GeneratedImages/(.+)\.xml" to="~/XMLHandler.ashx"/>
		<rewrite url="~/category/ClientBin/GeneratedImages/(.+)\.jpg" to="~/ImageHandler.ashx"/>
		<rewrite url="~/category/(.+)\.aspx" to="~/default.aspx"/>
	</rewriter>


	<system.web>
		<httpModules>
			<add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule, Intelligencia.UrlRewriter"/>
			<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
		</httpModules>
		<httpHandlers>
			<add verb="*" path="*.ashx" type="System.Web.UI.SimpleHandlerFactory"/>
			<remove verb="*" path="*.asmx"/>
			<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
			<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
			<add verb="GET,HEAD" path="ScriptResource.axd" validate="false" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
		</httpHandlers>
	</system.web>


	<system.webServer>
		<modules runAllManagedModulesForAllRequests="true">
			<remove name="ScriptModule"/><add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule"/>
			<add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/></modules>
		<validation validateIntegratedModeConfiguration="false"/>
		<handlers>
			<remove name="WebServiceHandlerFactory-Integrated"/>
			<remove name="ScriptHandlerFactory"/>
			<remove name="ScriptHandlerFactoryAppServices"/>
			<remove name="ScriptResource"/>
		       <add name="zzzzashxHandler" verb="*" path="*.ashx" type="System.Web.UI.SimpleHandlerFactory"/>
			<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
			<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
			<add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" preCondition="integratedMode" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> </handlers>
	</system.webServer>


</configuration>

Here is also my xmlHandler.ashx:

<%@ WebHandler Language="C#" Class="XMLHandler.XMLHandler" %>

using System;
using System.Web;

namespace XMLHandler
{
    public class XMLHandler : IHttpHandler
    {
        public bool IsReusable
        {
            get { return false; }
        }

        public void ProcessRequest(HttpContext context)
        {
            context.Response.Clear();
            context.Response.ContentType = "text/xml";
            context.Response.ContentEncoding = System.Text.Encoding.UTF8;

            string[] UriSections = context.Request.RawUrl.Split(new Char[] { '/' });
            if (!(UriSections[2] == "category" && UriSections[3] == "ClientBin" && UriSections[4] == "GeneratedImages"))
                throw new Exception("Requested xml file outside of category/ClientBin/GeneratedImages directory.");
            System.Text.StringBuilder xmlFile = new System.Text.StringBuilder("");
            for(int i=0; i<UriSections.Length; i++)
            {
                if (UriSections[i] != "category")
                {
                    if (i == UriSections.Length - 1)
                        xmlFile.Append(UriSections[i]);
                    else
                        xmlFile.Append(UriSections[i] + "/");
                }        
            } 
            context.Response.TransmitFile(xmlFile.ToString());
        } 

    }
}