i have a page that is containing single "buy now" button after click it goes to paypal and then runs the payment process,
now after completion of this payment process i need to launch user again to my site in a secure page which will give him a download option because he has been paid money for it.

how can i check this all in TEST MODE...


any body there to help.... me.

go to your account on paypal..
they have a script preferences that will do just what you are wanting to do.. and the instructions for it
but you have to set it from within your account.. they also have the API's etc..