Classic ASP & PayPal's ASP


I'm wondering if someone can help me put together a little code.  I'm a Classic ASP Programmer, and I need some help to fill in the blanks (...) of the following code:

Any help would be greatly appreciated.
If ... Then 'Payment has been received successfully and is in my PP
	Session("Payer_Name") = ... 'First & Last Name
	Session("Payer_EMail") = ...
	Session("Sellers_TransID") = ... 'the same number as within the confirmation e-mail at the top-right corner
End If
Response.Write(Session("Payer_Name") & "<br>")
Response.Write(Session("Payer_EMail") & "<br>")
Response.Write(Session("Sellers_TransID") & "<br>")

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APD TorontoSoftware DeveloperAsked:
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Alpha AuCommented:
where does the data come from? a textbox? or else?

if they are from textbox, you can use request.from("textboxname")
Alpha AuCommented:
sorry for the typo, it should be
SvenTech Lead Web-DevelopmentCommented:

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APD TorontoSoftware DeveloperAuthor Commented:
I have looked over PP's site 10 times, but I feel tha there is either a problem with  GoDaddy's Windows Shared Hosting (IIS7),  or with the first couple of lines of my code:
I've read , and my code is below, but I still get a "INVALID"  Can anyone help?

Dim Item_name, Item_number, Payment_status, Payment_amount
Dim Txn_id, Receiver_email, Payer_email
Dim objHttp, str
' read post from PayPal system and add 'cmd'
str = Request.Form & "&cmd=_notify-validate"
' post back to PayPal system to validate
' set objHttp = Server.CreateObject("Msxml2.ServerXMLHTTP")
' set objHttp = Server.CreateObject("Msxml2.ServerXMLHTTP.4.0")
set objHttp = Server.CreateObject("Microsoft.XMLHTTP") "POST", "", false
objHttp.setRequestHeader "Content-type", "application/x-www-form-urlencoded"
objHttp.Send str
' assign posted variables to local variables
Item_name = Request.Form("item_name")
Item_number = Request.Form("item_number")
Payment_status = Request.Form("payment_status")
Payment_amount = Request.Form("mc_gross")
Payment_currency = Request.Form("mc_currency")
Txn_id = Request.Form("txn_id")
Receiver_email = Request.Form("receiver_email")
Payer_email = Request.Form("payer_email")
' Check notification validation
if (objHttp.status <> 200 ) then
' HTTP error handling
elseif (objHttp.responseText = "VERIFIED") then
' check that Payment_status=Completed
' check that Txn_id has not been previously processed
' check that Receiver_email is your Primary PayPal email
' check that Payment_amount/Payment_currency are correct
' process payment
elseif (objHttp.responseText = "INVALID") then
' log for manual investigation
' error
end if
set objHttp = nothing

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