403 error: how do you code more than one hyperlink to trigger popupextender

I am trying to make several hyperlinks be the target control of a popupcontrolextender. Right now the hyperlink1 triggers everything correctly, but i need to have the panel1 and panel2 popup, with data dynamically filled, for the other links as well. Here is the code:

<asp:Panel ID="Panel3" runat="server">
    <asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional" >
    <ContentTemplate>
 <asp:LinkButton ID="LinkButton1" CssClass="calendar" onmouseover="$find(this).showPopup();" 
                    onmouseout="$find(this).hidePopup();" onClick="LinkButton1_Click" value="LinkButton6"
                rel="nofollow" runat="server">hi</asp:LinkButton>
                <asp:LinkButton ID="LinkButton60"  onmouseover="$find(this).showPopup();" 
                    onmouseout="$find(this).hidePopup();" onClick="LinkButton1_Click" value="LinkButton6" 
                    runat="server">LinkButton</asp:LinkButton>
                <asp:LinkButton ID="LinkButton120"  onmouseover="$find('this').showPopup();" 
                    onmouseout="$find(this).hidePopup();" onClick="LinkButton1_Click" value="LinkButton12" 
                    runat="server">LinkButton12</asp:LinkButton>
//many more links....
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:Panel ID="Panel1" CssClass="popup" runat="server">
        <Triggers>
                <asp:AsyncPostBackTrigger ControlID="LinkButton60" EventName="click" />
        <asp:AsyncPostBackTrigger ControlID="LinkButton120" EventName="click"/>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <div>
                Event:
                <asp:Literal ID="Literal1" runat="server"></asp:Literal><br />
                Time:
                <asp:Literal ID="Literal2" runat="server"></asp:Literal><br />
                Location:
                <asp:Literal ID="Literal3" runat="server"></asp:Literal><br />
            </div>
        </ContentTemplate>
    </asp:UpdatePanel>
     <asp:BalloonPopupExtender ID="BalloonPopupExtender1" BalloonPopupControlID="Panel1"
        Position="TopRight" TargetControlID="LinkButton60" runat="server" BalloonSize="Medium"
        DisplayOnMouseOver="True" DynamicContextKey="value" DynamicControlID="Panel1" DynamicServicePath="DynamicPopulate.asmx.cs"
        DynamicServiceMethod="UpdatePanel1_DynamicPopulateExtender">
    </asp:BalloonPopupExtender>
    <asp:Panel ID="Panel2" runat="server" CssClass="popup">
    <asp:UpdatePanel ID="UpdatePanel2" runat="server">
        <ContentTemplate>
            <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
            <asp:Image ID="Image1" Style="height: auto;" ImageUrl="imagename.jpg" 
                AlternateText="Comedy Masque Review"
                BorderColor="green" BorderStyle="Ridge" BorderWidth="6px" 
                runat="server" Width="300px" />
        </ContentTemplate>
    </asp:UpdatePanel>
</asp:Panel>
<asp:PopupControlExtender ID="PopupControlExtender1" runat="server" Position="Bottom" 
    DynamicContextKey="value" DynamicControlID="Panel2" 
    DynamicServiceMethod="PlaceHolder1_DynamicPopulateExtender" DynamicServicePath="DynamicPopulate.asmx.cs" 
    BehaviorID="onclick" PopupControlID="Panel2" TargetControlID="LinkButton60" CommitProperty="value" CommitScript="onOK();"></asp:PopupControlExtender>
    </ContentTemplate>
    </asp:UpdatePanel>
</asp:Panel>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI.WebControls;

namespace something
{
    /// <summary>
    /// Summary description for DynamicPopulate
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
     [System.Web.Script.Services.ScriptService]
    public class DynamicPopulate : System.Web.Services.WebService
    {

        [System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
        public string PlaceHolder1_DynamicPopulateExtender(string contextKey)
        {
            string s = "got to service method";

            return s;
        }
        [System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
        public  string UpdatePanel1_DynamicPopulateExtender(string contextKey)
        {
            string s = "got to service method";

            return s;

        }
    }
}

CAN'T get into service method call failed: 403(Forbidden). (Although use successfully SlideService WebService in same project)
Did search on internet, and thought i needed to add proxy to config file, but must not be doing it correctly:
I am using an IIS local host:

 http://localhost:50867/RoutingName<pre>
and must not be modifying the code below correctly!  Can you help?
<configuration>
  <system.net>
    <defaultproxy>
      <proxy>
        usesystemdefaults="true"
        proxyaddress="http://192.168.1.10:3128"
        bypassonlocal="true"
      />
      <bypasslist>
        <add address="[a-z]+\.contoso\.com" />
      </bypasslist>
    </proxy></defaultproxy>
  </system.net>
</configuration>

Tags: .NET (.NET4), Ajax