can we show supporter payment options in the main site after signup

i want to make the supporter payments "part" of the sign up process. i allow users to enter their password, and auto login the user . so by the time the blog is created, user is logged in. i got up to this part. now i want to show the supporter payment options in the next step in the same template on the main site instead of in the wp-admin so it appears that the payment is the last step of the signup process. how do i achieve this ?