[mimp] core.php

[Lists]

Hiya,

My install of MIMP (latest snapshot) fails as follows:
Fatal error: Failed opening required
'/my_web_root/htdocs/horde/mimp/lib/../../lib/core.php'
(include_path='.:/usr/lib/apache/php') in
/my_web_root/htdocs/horde/mimp/lib/base.php on line 23

This is under horde version 2.2.4

There was no conf.php under config/ (although there was a conf.xml) 
so I copied the one from my (working) IMP installation.

Does MIMP not support this version of horde, or am I doing something 
daft here?

Many thanks for any pointers.

Adam.