[imp] imp3.1 on rh7.2

[Ricardo P. Garin Jr.]

im getting the errors below   when typing the url of my imp:
http://webmail.mydomain.com
im using rh7.2 with apache1.3.26,  imp3.1, horde2.1, pear4.1.0,
imap2001a.

what did i missed?

thanks,
ricardo


Warning: Failed opening
'/usr/local/apache/htdocs/horde/lib/../config/registry.php' for
inclusion (include_path='.:/usr/local/lib/php') in
/usr/local/apache/htdocs/horde/lib/Registry.php on line 93

Warning: Failed opening
'/usr/local/apache/htdocs/horde/imp/lib/../../config/lang.php' for
inclusion (include_path='.:/usr/local/lib/php') in
/usr/local/apache/htdocs/horde/lib/Lang.php on line 69

Warning: Failed opening
'/usr/local/apache/htdocs/horde/imp/lib/../../config/lang.php' for
inclusion (include_path='.:/usr/local/lib/php') in
/usr/local/apache/htdocs/horde/lib/Lang.php on line 69