Upgrading rt-2.0.15 to rt-3.0.15 with rt2-to-rt3-1.23

We are currently using version 2.0.15 of RT and would like to try out
version 3.0.11.

In using version 1.23 of rt2-to-rt3 I ran into a problem with
PagerEmailAddress not being a column in the Users table ( in the
export_users subroutine of rt2-to-rt3, $blank_User->_Accessible is
called which seems to add PagerEmailAddress to _AccessibleCache)

What version of rt2-to-rt3 should I use for an upgrade from 2.0.15 to

-Shawn Page