To enable the 2Checkout 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 2Checkout entry.
3. Put in the value you obtained from 2Checkout for the 'Vendor ID'.
4. Click 'Save and Close'.
5. Finally, click the radio button next to 2Checkout and then click the 'Submit' button.