Login to website with WebRequest - vb.net

Question

VB2012: I'm trying to login to my company website to parse out some info. It has a typical page
portal.mycompany.com
which redirects eventually to
security.mycompany.com/login.jsp?TYPE=xxx&METHOD=GET&{more parameters}
and there we are presented with textboxes for user name and password. I have Fiddler running and am a little lost as to what to look for when setting up my POST. My example looks to be the same from various coding sites. I am mainly looking for help on what to look for in Fiddler to use as a basis for the POST request to login to my site programmatically.
I took a look at some of the Fiddler entries and added what I thought was the enrty with the credentials. But when i tried adding this to the POST request it just responded with the original page.
Dim cookieJar As New Net.CookieContainer()
Dim request As Net.HttpWebRequest
Dim response As Net.HttpWebResponse
Dim strURL As String
Try
'Get Cookies
strURL = "http://portal.mycompany.com"
request = Net.HttpWebRequest.Create(strURL)
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3"
request.Method = "GET"
request.CookieContainer = cookieJar
response = request.GetResponse()
For Each tempCookie As Net.Cookie In response.Cookies
cookieJar.Add(tempCookie)
Next
'Send the post data now
request = Net.HttpWebRequest.Create(strURL)
request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3"
request.Method = "POST"
request.AllowAutoRedirect = True
request.CookieContainer = cookieJar
Dim writer As StreamWriter = New StreamWriter(request.GetRequestStream())
writer.Write("email=username&pass=password") 'where do I get this in Fiddler?
writer.Close()
response = request.GetResponse()
'Get the data from the page
Dim stream As StreamReader = New StreamReader(response.GetResponseStream())
Dim data As String = stream.ReadToEnd()
response.Close()
If data.Contains("<title>MyCompany") = True Then
'LOGGED IN SUCCESSFULLY
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try