paypal email id transfer to next page

Hi

I have challenge with paypal data transfer. I've created buy now buttons. Everything works fine but I can't get paypal email id into my sign up after payment screen.

I have thank you page something like this:
http://mydomain.com/thanx.asp


thanx.asp

<%
   Session("tx") =Request("tx")
   Session("st") =Request("st")
   Session("amt") =Request("amt")
   Session("cc") =Request("cc")
   Session("cm") =Request("cm")
   Session("sig") =Request("sig")
   Session("business") =Request("business")
   Session("payer_email") =Request("payer_email")

%>

Code (markup):

tx stands for transaction id and brings the code, others also work fine, but I cannot get email id. I wrote these two variables "business" and "payer_email" but they are not transferring email.


How can I get paypal email id ? This is for sending password to that paypal email id? Your help will be highly appreciated.

 

any reply ?