Why does API document generated by scaladoc2 display "Instance constructors" at the bottom?

Hi. Currently I've been developing a library using scala 2.8.0 beta1 and
refers API document generated by scaladoc2 in the development.

http://www.scala-lang.org/archives/downloads/distrib/files/nightly/docs/...

I'm wondering why "Instance constructors" is displayed at the bottom
of the page.
In my opinion, "Instance constructors" should be displayed above
"Value Members" at least
because a way to create instances of a class is needed in general even
if all members of
the class is not needed. Is there any reason that "Instance
constructors" is displayed at
the bottom?