Dynamic TextBoxes

Hi All,
am using vs.net 2005 with c#
i want to create the dynamic textboxes and retrieve the value of them.
i have the following page :
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="testDynamicTextBox.aspx.cs" Inherits="testDynamicTextBox" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
   <table>
   <tr><td colspan="2" align="right"><asp:Button ID="btnAdd" Text="Add More" runat="server" OnClick=&q ...