Hello!
Are all the oracle services running on the OS.
if not try to create the oracle service for which you want create the database manually using ORADIM
then set oracle_sid=sid_name
sqlplus /nolog
connect sys/change_on_install@sid_name as sysdba
try this option..
still you have any problems post your email address i will send you the document how to install the oracle on w2k..
please mention your hardware configuration..
oracle recomends min 256 MB ram for 9i..
