You should have received two emails by now, a license key email and a thank you email.
They would have been sent to the email address that you have configured in your paypal account.
If you did not receive those emails, check in any spam folder you might have.
Still can't find them, email me (firstname.lastname@example.org
) or send me a personal message on the forum by clicking the little square "quote" balloon under my name on the left.