[horde] Horde error with login

[Philippe Grevet]

I need help help with my new version of Horde, Imp, turba
I have  a old version who work fine, and install an ew version on a new 
server with RedHat 9
I compile
Openssh-3.8.1p1
Openssl-0.9.7d
Openldap-2.1.30
Apache 2.0.49
Mysql 4.0.18
PHP 4.3.6
with c-client imap-2004
pear -1.3 or pear install and pear ugrade-all
horde 2.2.5
imp 3.2.3


Horde is install as described  the installation instruction of the new 
release and look at my old configuration
in this directory
/home/www/webmail/htdocs/horde
in httpd.conf
DocumentRoot /home/www/webmail/htdocs/horde



all ok  when i test :
test.php of the horde repertory
and  imp/test.php

but when i try  login
i have this message :
=======
Warning:
registry(/home/www/webmail/htdocs/horde/lib/../config/registry.php):
failed to open stream: Permission denied in
/home/www/webmail/htdocs/horde/lib/Registry.php on line 106

Warning: registry(): Failed opening
'/home/www/webmail/htdocs/horde/lib/../config/registry.php' for
inclusion (include_path='.:/usr/local/php-4.3.6/lib/php') in
/home/www/webmail/htdocs/horde/lib/Registry.php on line 106

Warning: setlang(/home/www/webmail/htdocs/horde/config/lang.php): failed
to open stream: Permission denied in
/home/www/webmail/htdocs/horde/lib/Lang.php on line 72

Warning: setlang(): Failed opening
'/home/www/webmail/htdocs/horde/config/lang.php' for inclusion
(include_path='.:/usr/local/php-4.3.6/lib/php') in
/home/www/webmail/htdocs/horde/lib/Lang.php on line 72

Warning: importconfig(/home/www/webmail/htdocs/horde/config/horde.php):
failed to open stream: Permission denied in
/home/www/webmail/htdocs/horde/lib/Registry.php on line 588

Warning: importconfig(): Failed opening
'/home/www/webmail/htdocs/horde/config/horde.php' for inclusion
(include_path='.:/usr/local/php-4.3.6/lib/php') in
/home/www/webmail/htdocs/horde/lib/Registry.php on line 588
==========
Then i install the library  pear-1.3  under /usr/local/share/ and and 
modify include in php.ini, but i have the same error.
If you know  this problem and don't see anything in faq, but the same 
problem on the web, without solution.

Philippe