[imp] imp/php error

[db]

i installed imp and the horde framework and when i
tried to test imp (index.php)

I get the following errors

Warning:
main(/usr/imp-3.2.1/lib/../../lib/Browser.php)
[function.main]: failed to create stream: No such file
or directory in /usr/imp-3.2.1/lib/base.php on line 25

Fatal error: main() [function.main]: Failed opening
required '/usr/imp-3.2.1/lib/../../lib/Browser.php'
(include_path='.:/usr/local/lib/php') in
/usr/imp-3.2.1/lib/base.php on line 25

What could have possibly gone wrong?


My details:

Apache -  Apache/1.3.26  
Php - 4.3.0
Horde -2.2.3
Imp - 3.2.1
---------------------------------------------
This is the Horde test screen:
Horde Versions
Horde: 2.2.3 
PHP Version
View phpinfo() screen 
PHP Version: 4.3.0 
PHP Major Version: 4.3 
PHP Minor Version: 0 
PHP Version Classification: release 
You are running a supported version of PHP.
PHP Module Capabilities
DOM XML Support: No 
FTP Support: No 
Gettext Support: Yes 
IMAP Support: No 
LDAP Support: No 
MCAL Support: No 
Mcrypt Support: No 
MySQL Support: Yes 
PostgreSQL Support: No 
XML Support: Yes 
Miscellaneous PHP Settings
magic_quotes_runtime disabled: Yes 
file_uploads enabled: Yes 
safe_mode disabled: Yes 
trans_sid disabled: Yes 
PHP Sessions
Session counter: 5 
To unregister the session: click here 
PEAR
PEAR - Yes 
Recent PEAR - Yes 
Mail - Yes 
Log - Yes 
DB - Yes 
Net_Socket - Yes 
Date - Yes 
HTML_Common/HTML_Select - No 
Horde requires the HTML_Common and HTML_Select classes
only for Kronolith 1.0 to display forms correctly. 









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