error while apply oracle patch 10.2.0.4

hi..

i am applying oracle patch 10.2.0.4 on my Production system , it generating error

E:\oracle\R3D\102\OPatch>opatch apply

Invoking OPatch 10.2.0.2.0

Oracle interim Patch Installer version 10.2.0.2.0

Copyright (c) 2005, Oracle Corporation. All rights reserved..

Oracle Home : e:\oracle\R3D\102

Central Inventory : C:\Program Files\Oracle\Inventory

from : n/a

OPatch version : 10.2.0.2.0

OUI version : 10.2.0.2.0

OUI location : e:\oracle\R3D\102\oui

Log file location : e:\oracle\R3D\102\cfgtoollogs\opatch\opatch-2009_Apr_29_13-3

5-37-PKT_Wed.log

ApplySession applying interim patch '7715057' to OH 'e:\oracle\R3D\102'

Apply Session failed: ApplySession failed to prepare the system. ApplySession: R

equired component(s) [ oracle.rdbms.rsf, 10.2.0.4.0 ] not present in the Oracle

Home or a higher version found.

System intact, OPatch will not attempt to restore the system

OPatch failed with error code = 73

plz guide me , how can i resolve that issue

Regards

Imran