Navigation Menu xml Match Help

In the Default Search Nav Menu I am trying to match all of my Active Directory reports so they are Nested in "AD Reports". All of the reports start with "AD ". The issue i'm running into is that other reports that have "AD " are matching such as "Dead Hosts".

<collection label="AD Reports">
  <saved source="unclassified" match="AD " />
</collection>

I searched for anything about xml and match but could not find any rules or ways to use regex. Any ideas about how to specify a match?

Similar to a question asked by Glenn, what characters are we allowed to use to specify the match?:

http://answers.splunk.com/questions/4288/is-it-possible-to-match-views-in-app-menu-using-wildcards-or-multiple-match-stri