imp3 horde2 parse error

[fabrizio]

Hello I've installed Horde2 and imp 3 on a slackware 7.1 but when I point
my browser on:
http://127.0.0.1/horde/imp
I get this errors:

Parse error:  parse error, expecting `')'' in
/var/lib/apache/htdocs/horde/config/registry.php on line 104
Warning:  Undefined index:  webroot in
/var/lib/apache/htdocs/horde/lib/Registry.php on line 626
Warning:  Undefined index:  imp in
/var/lib/apache/htdocs/horde/lib/Registry.php on line 626
Warning:  Cannot add header information - headers already sent by (output
started at /var/lib/apache/htdocs/horde/config/registry.php:104) in
/var/lib/apache/htdocs/horde/imp/lib/base.php on line 65

I've installed all the packages following the docs/INSTALL in Horde and
Imp, this is the Horde/test.php output after installation:

Horde Versions
Horde: 2.0

PHP Version
View phpinfo() screen
PHP Version: 4.1.1
PHP Major Version: 4.1
PHP Minor Version: 1
PHP Version Classification: release
You are running a supported version of PHP.

PHP Module Capabilities
FTP Support: No
Gettext Support: Yes
IMAP Support: Yes
LDAP Support: No
MCAL Support: No
Mcrypt Support: No
MySQL Support: Yes
PostgreSQL Support: No
XML Support: Yes
Miscellaneous PHP Settings
magic_quotes_runtime set to Off: Yes

PHP Sessions
Session counter: 2
To unregister the session: click here

PEAR
PEAR - Yes
Recent PEAR - Yes
Mail::RFC822 - Yes
Log - Yes
DB - Yes


Ups! any ideas?