Rename ad.ini to be yourservicename.ini. So in my case my server is "server1" so I did:
mv ad.ini server1.ini
Also edit it so all the [ns/server/yourserver/ad] sections have your service name instead of "yourserver" or whatever the default value is. So for me these all read:
[ns/server/server1/ad/comments] or whatever
Then make sure your nsd.ini found in /home/nsadmi (or your NS_HOME) has auxconfigdir=/web/server1/www/parameters (where server1 is your server name) listed under [ns/parameters]
Good luck. Check the arsdigita pages for help too.
