Description of problem:
% bacula-tray-monitor
26-Dec 14:40 tray-monitor: ERROR TERMINATION at parse_conf.c:819
Config error: Cannot open config file "./tray-monitor.conf": Permission denied

% pwd
/home/tuju

# chown root:bacula /etc/bacula/tray-monitor.conf
% id tuju
uid=500(tuju) gid=500(tuju) groups=500(tuju),491(bacula) 
context=unconfined_u:system_r:unconfined_t:s0-s0:c0.c1023
% bacula-tray-monitor
Connecting to Director...

Version-Release number of selected component (if applicable):
bacula-traymonitor-2.0.3-11.fc8

I guess those files could be in bacula group out of the box
as nobody would like to add those users to root group anyway.
Now error implies that the problem is in user's home dir.