how to customize the landing page for email verification of newsletter subscription when using bc wi

If I don't make a custom form, and I use the generated code from the the newsletter sign up, when I test and get the e-mail verification message, there is a link to verify subscription. When I click that link I'm taken to a "default template" page, where the content is the verification link. Since I started the site as a bc guru template, then overrode files by publishing with muse, is there a way to make a default template based on my muse design? In previous videos by adobe there was a way to make a bc template from within muse; but with all the recent changes it seems to me that this isn't working any longer. If it was; I'd make a template, then go into the admin and mark it the default. That is really my goal here; or to know the right tag to use to place on a page within muse to make the landing page have the muse site's look and feel.  Any help is appreciated.

Thanks!