Configuration Problem

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Greetings!

I'm trying to get PhpGroupWare running on my RedHat Linux 9.0 system 
using Postgresql-7.3.2.
I downloaded the the tarball phpgroupware-0.9.14.006.tar.gz from 
sourceforge (tried the RPM, but got the following error when I attempted 
to list the rpm:

error: phpGroupWare-all-apps-0.9.14.006-1.noarch.rpm: V3 DSA signature: 
BAD, key ID d9b2a6f2

The tarball installation went fine, no errors as I installed all the 
applications. Did a "Site Setup" on Time Trak and everything went fine. 
I tried to add a global category, but I got the following error:

Database error: Invalid SQL: INSERT INTO phpgw_categories ( 
cat_parent,cat_owner,cat_access,cat_appname,cat_name,cat_description,cat_data,cat_main,cat_level) 
VALUES ( '','3','public','phpgw','AIM','AIM Project','','','')
PostgreSQL Error: 1 (ERROR: pg_atoi: zero-length string )

File: /var/www/html/phpgroupware/phpgwapi/inc/class.categories.inc.php
Line: 515

Session halted.

Anybody have a clues as to what I'm doing wrong?

John


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