WebClient - Am I logging in right, or being redirected right?

[Raygar]

Hi
I'm trying to figure out a way to log into a new site that a 3rd party vendor has provided us by using a script.
I'm new to web related coding.

Its a ticketing site. We have to log into it.
If you attempt to load up a URL directly to a ticket, you are redirected to the login window. Once you log on, you can then view the ticket.

        private void Form1_Load(object sender, EventArgs e)
        {
            string postData = "userName=Removed&password=Removed";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("End URL's location");
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = postData.Length;
            request.Method = "POST";
            request.AllowAutoRedirect = false;

            Stream requestStream = request.GetRequestStream();
            byte[] postBytes = Encoding.ASCII.GetBytes(postData);
            requestStream.Write(postBytes, 0, postBytes.Length);
            requestStream.Close();
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            Console.WriteLine(new StreamReader(response.GetResponseStream()).ReadToEnd());
            Console.WriteLine("Headers:");
            Console.WriteLine(response.Headers.ToString());

            string url = "End URL's location";
            System.Diagnostics.Process.Start(url);
        }

The info that I keep downloading is the login's page html code. Not the ticket page's code.
Console's results (made it a bit easier to read):

<input type="hidden" name="redirectAction" value="Removed_request_dashboard">
<input type="hidden" name="userName" value="Removed">
<input type="hidden" name="inc_id" value="5045176">
<input type="hidden" name="password" value="Removed">


There must be a tiny bit of code I'm missing. The login info is there, but its not logging me in. Or perhaps its logging me in but not directing me properly afterwards.