global.asax timer triggered email

Hi all,
i am trying to write a global.asax to send an email notification to auction winners, using visual studio 2008 and sql express. so far i have written this using tutorials etc but i am getting errors to do with finding the database. i am also wondering if my global.asax page is written correctly in general,
any help in regard to this is much appreciated
kind regards,
<%@ Application Language="C#" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.SqlClient" %> <%@ Import Namespace="System.Timers" %> <%@ Import Namespace="System.Net.Mail" %> <script runat="server"> void Application_Start(object sender, EventArgs e) { System.Timers.Timer t = new System.Timers.Timer(30000); t.Elapsed += new ElapsedEventHandler(t_Elapsed); t.AutoReset = true ...