iCal Setup

Hi,
I’m new to MacOS X Server (v10.5.5) and I’ve been trying to get iCal running.
I’m using MacOS X Server for family members. All have accounts on the server
in LDAPv3/127.0.0.1 (NOT server1.local). but none of them currently have home
folders on the server – since I mainly been using Mail, File Sharing,
and my web site on the server.

Now I’m trying to move forward with iCal funtions.
I don’t think I’m talking about web group calendar, rather just sharing calendars
from our client machines. We do our calendaring from Entourage when gets
sync’d with iCal on each users laptop. When I select “Entourage” calendar in
iCal and open iCal | Preferenes | Accounts and click “+” and try to add the server
such as: server1.beckfamily.com, users: myname, pwd ***** I get back a dialog box that says:

Account information not found
Calendar http://server1.beckfarmily.com:80/principles/_uids_/c19…C5/ could not
be found.

I don’t know where to begin with this error message.