I got the following error during the above install using the NW 6.5 SP5
Overlay CD:

The PKI install was unable to create the Organization Certificate
Authority. Error code -603. Do you want to retry.

Click Yes to retry but still failed. Click No and the install continues.

However, how can I fix the above now.

Before this install, I have removed the first server that was installed on
the tree. I did do the following before I remove eDirectory on the server:
-Set another server as the master replica of Root partition
-Pick another server as the single time server and changed all servers to
reference the new time server

Now can I have another certificate server for the tree and how do I go
above that.