Is using the imanager the only way to install bordermanger ?

I'm having a tough time configuring the imanager. Can't
login to the novell extend director.
uthentication to Directory server failed.
Please check name (DN) and password.

Please enter the LDAP directory server and the credentials for
administrator access so that setup can update the directory:
This server is currently configured for:

Directory administrator distinguished name (DN):

(e.g. cn=admin,ou=MyDepartment,o=MyCompany)

Directory administrator password: