Ultimae Branding Plugin Problem – In the text Domain

I am trying to change the default text “Sorry, but nothing matched your search criteria.” for search results JUST for one category result and not universally.

In “This Text Domain” I have added: /category/serial-numbers

And then “And Replace It With” with the text: You must be a member of an Angel Token page to see a link to your membership here.

This is for this page: http://www.taggedbyanangel.com/category/serial-numbers/

When I click on Serial Numbers and am not logged in. It does not apply.

If I leave “In this text domain” then it applies to all search results and that I DO NOT WANT.

See example screen cast: http://www.screencast.com/t/0kHBnqWJK

Please advise.