need help on the submit button

When i click the submit button using the code:

Partial Public Class confirmation
Inherits System.Web.UI.Page

Public Property Label2 As Object

Protected Sub page_load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

If PreviousPage IsNot Nothing Then
Label2.Text = "Thanks for registering "

End If
End Sub

End Class

On the confirmation.aspx page nothing shows up!!

This is my code for the registration page:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="registration.aspx.vb" Inherits="Default2" %>