To enable the PayPal PayFlow Pro gateway:

1. In the AspDotNetStorefront admin console, go to the Site Configuration Wizard page.

2. In the Payment Gateway section, click the 'configure' link next to the PayPal PayFlow Pro entry.

3. Put in the values you obtained from PayPal PayFlow Pro for the 'Partner', 'User', 'Password', and 'Vendor'.

4. Click 'Save and Close'.

5. Finally, click the radio button next to PayPal PayFlow Pro and then click the 'Submit' button.