Drupal 7.22
certificatelogin 7.x-2.0-rc3 OR certificatelogin 7.x-2.x-dev

No link appears on the access denied page regardless of the state of the Present login link on access denied (403) setting. The Access Denied Custom Message setting also has no visible affect of the access denied page.

There is also no link on the login form to log in with a certificate (assuming there's supposed to be one).

Because of all that, it took some digging to find that I needed to visit mysite.com/login to reach the certificate login button.