[mimp]Mimp looking for Mobile.php

[mimp at lentner.com]

Fatal error: Failed opening 
required '/var/www/html/mail/horde/mimp/templates/index/../../../lib/Mobile.php'
 (include_path='.:/usr/share/pear')


>From the above I gather I need Mobile.php, I searched all my horde dirs and 
found nothing.

Redhat 8.0
Horde 2.0
IMP 3.1

Do I need later versions?