My sms page is not redirecting

Hi,

I have used the below to redirect my login page to next send sms page but it is not redirecting if any one find any mistake in the below given code pls reply

public void connect()
{
ckuser = Session["id"].ToString();
ckpass = Session["pw"].ToString();

try
{
this.req = (HttpWebRequest)WebRequest.Create("http://wwwd.way2sms.com/auth.cl");

this.req.CookieContainer = new CookieContainer();
this.req.AllowAutoRedirect = false;
this.req.Method = "POST";
this.req.ContentType = "application/x-www-form-urlencoded";
this.strNewValue = "username=" + ckuser + "&password=" + ckpass;
this.req.ContentLength = this.strNewValue.Length;
StreamWriter writer = new StreamWriter(this.req.GetRequestStream(), Encoding.ASCII);
writer.Write(this.strNewValue);
writer.Close();
this.response = (HttpWebResponse)this.req.GetResponse();
this.cookieCntr = this.req.CookieContainer;
this.response.Close();
this.req = (HttpWebRequest)WebRequest.Create("http://wwwd.way2sms.com//jsp/InstantSMS.jsp?val=0");
this.req.CookieContainer = this.cookieCntr;
this.req.Method = "GET";
this.response = (HttpWebResponse)this.req.GetResponse();
responseee = new StreamReader(this.response.GetResponseStream()).ReadToEnd();
int index = Regex.Match(responseee, "custf").Index;
responseee = responseee.Substring(index, 0x12);
responseee = responseee.Replace("\"", "").Replace(">", "").Trim();
this.response.Close();

pnlsend.Visible = true;
lblErrormsg.Text = "connected";
}
catch (Exception)
{
lblErrormsg.Text = "Error connecting to the server...";
Session["error"] = "Error connecting to the server...";
Server.Transfer("Default.aspx");
}
}

Thanks.

shanthosh.s