Our Roots are now included in the latest version of the JRE (1.5.0, aka 5.0, Update 8):
http://java.sun.com/javase/downloads/index.jsp
This JRE version was authenticode-timestamped on 26th July 2006.
We are also mentioned in the Release Notes:
http://java.sun.com/j2se/1.5.0/ReleaseNotes.html#150_08 (search for “Comodo”)