[horde] Horde Authentication

[Stojan]

Hi,
I've installed horde (downloaded from the CVS today)
and mysql too
I've created a tables in mysql
and I want to log into the horde but can't find way for adding users
are there any existent users or i should add them manually in mysql
in db called horde table horde_users ???

Also,
when trying signup.php I get this error:

Warning: 
_horde_hook_signup_getextra(/var/www/html/horde/config/../turba/config/attributes.php) 
[function.-horde-hook-signup-getextra]: failed to create stream: No such file 
or directory in /var/www/html/horde/config/hooks.php on line 288
 
 Fatal error: _horde_hook_signup_getextra() 
[function.-horde-hook-signup-getextra]: Failed opening required 
'/var/www/html/horde/config/../turba/config/attributes.php' 
(include_path='.:/usr/lib/php/:/usr/share/pear/') in 
/var/www/html/horde/config/hooks.php on line 288

What's wrong ???