.net nested master page wont display

Hi, i have the root.master page working it display, the first ContentPlaceHolder1 gets overridden.. by the contents from default.aspx.  The second placeholder doesnt get over-ridden by the second master page.. not having much luck with these.  here is from 'root.master'


<%@ Master Language="VB" CodeFile="root.master.vb" Inherits="MasterPage" AutoEventWireup="true" %>
..

<td colspan="5" valign="top" width="532" align="center"> <!--532-->
               
                          <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
       
                          </asp:ContentPlaceHolder>

....

...
..

<TD WIDTH='267'>
      <!-- OFFERS -->
       <asp:ContentPlaceHolder id="rhs1" runat="server">
       
       </asp:ContentPlaceHolder>
</TD>


this is rhs.master


<%@  Master Language="VB" MasterPageFile="~/root.master" AutoEventWireup="true" CodeFile="rhs.master.vb" Inherits="MasterPage2"  %>

<asp:Content ContentPlaceHolderID="rhs1" runat="server">

76768

   </asp:Content>


contents if it matters form default.aspx would be :

<%-- Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="Default2.aspx.vb" Inherits="Default2" --%>

<%@ Page MasterPageFile="~/root.master" src="cb_default.aspx.vb" Inherits="WebForm1" %>


<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<form id="Form1" runat="server">
<asp:formview runat="server" id="f1">

   
                <ItemTemplate>
                <table border="1" bordercolor="#000000" bgcolor="#ffffff">  <!--Beginning of flash object-->
                   
                    <tr>
                           <td colspan="5" bgcolor="#000" style="color:#FC3; text-align:center; font-size:36px; ">
                                    <blink>Think Blink</blink>
                                </td>
                            </tr>
                   
                    <td width="50%" style="color:white; text-align:center; font-size:16px; ">ccdsfds
                        <asp:HyperLink  ID="link1" text=<%#  Container.DataItem("productName") & ":: £" & Container.DataItem("price") %> NavigateUrl=<%# "http://www.bath-depot.co.uk/productDetails.asp?prodID=" &  Container.DataItem("itemID") %> runat=server >
                        </asp:HyperLink > 
                    </td>
                      <td width="50%" style="color:#FC3; text-align:center; font-size:16px;">
                        <asp:HyperLink  ID="HyperLink1" text=<%# Container.DataItem("available") & " Available!" %> NavigateUrl=<%# "http://www.bath-depot.co.uk/productDetails.asp?prodID=" & Container.DataItem("itemID") %> runat=server >
                        </asp:HyperLink > 
                    </td>
                    </tr>
                    <td colspan='2'>
                    <asp:Image ID="image1" AlternateText="image1" ImageUrl=<%# "http://www.bath-depot.co.uk/" & Container.DataItem("image")  %> width="432" height="378"  runat=server />

                   
                    </td>

                    <tr>
                    <td colspan='2' style="color:#FC3; background:#000; font-size:20px; text-align:center;">
                     <script type="text/javascript" language="JavaScript">  
                                          TargetDate = "<%# "17/02/2011 " & Container.DataItem("targetTime") %>";
                                          BackColor = "#000";
                                          ForeColor = "#FC3";  
                                          CountActive = true;  
                                          CountStepper = -1;
                                          LeadingZero = true;  

                                          DisplayFormat = "<font color='white'> %%H%% </font>Hours,<font color='white'> %%M%% </font>Minutes, <font color='white'>%%S%% </font>Seconds left!";
                                          FinishMessage = "Offer Ended! Await next offer at 10am";
                              </script>
                   
                              <script type="text/javascript" language="JavaScript" src="../countdown.js"></script>
                    </td>
                    </tr>
                    </table>
                    </td>
               
                </ItemTemplate>

</asp:formview>
 </form>
  <tr><td colspan='5' width='100%'><img width='100' height='15' src='images/spacer.gif' /></td></tr>
            <tr>
                <td colspan="5" align="center">
                       <img src="images/Bland.jpg" width="506px">
                </td>  
                <!--/td>
            </tr-->

             <tr><td colspan='5' width='100%'><img width='100' height='15' src='images/spacer.gif' /></td></tr>        
            <tr><td colspan='5' width='100%'><img width='100' height='15' src='images/spacer.gif' /></td></tr>
            <tr>
            <td colspan="5" width="100%" align="center">
                  <!--div style="position:relative;top:-55px"-->                    
                          <img src="images/shoptag.jpg">
                 <!--/div-->
            </td>
            </tr>

</asp:Content>