How to email the contents of a registration form to a specific email

If I have a user register on this page signup.aspx, I want to fields to be emailed to the admin so that they can manually set up the new user. The user will not be able to use their membership until they have received a confirmation email from the admin.
I know there is a better way to do this, but this is how it is to be done.
My code below for the signup.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="signup.aspx.cs" Inherits="index1.signup2" %> <!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 id=&qu ...