I did create the slave record on dns manager, but "slave/..." did not get added when I created slave record.
It could've been buggy yast2 in openSuse 10.1 issue. It's my first time playing around with openSuse distro, and I am impressed by its ablility to support my old Symbios Scsi cards & HP netRaid cards right out of the box, but i am not so found of yast2 so far. I had to manually add update source in yast2 and I still can't find a way to add install sources on 2 servers. I had to use y2pmsh to manually install all the required programs.
Now everything is running extremly well and thanks for creating wonderful ISPConfig Package!