Oracle9.2.0.1 Problem

Hi!
I'm new to this forum and this is my first Q ..

I installed Oracle9.2 on WinXP.
I started Listener and DB services in Windows Services.
Their status is STARTED.

But when i start Listener manually, i get the following errors.
-------------------

LSNRCTL> start listener
Starting tnslsnr: please wait...

Service OracleOraHome92TNSListener already running.
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 1056: Unknown error
----------------------------
# LISTENER.ORA Network Configuration File: J:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.2)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
)

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = J:\Oracle\ora92)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = COMPANY)
(ORACLE_HOME = J:\Oracle\ora92)
(SID_NAME = COMPANY)
)
)

------------------------------------------------------
# TNSNAMES.ORA Network Configuration File: J:\oracle\ora92\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.2)(PORT = 1534))
)
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)

COMPANY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.2)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = COMPANY)
)
)

----------------------------------------
# SQLNET.ORA Network Configuration File: J:\oracle\ora92\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.

SQLNET.AUTHENTICATION_SERVICES= (NTS)

NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME)

----------------------------
i attached above the config. files of my Oracle 9.2.0.1

I get TNS - 12560 error when i try to login using scott/tiger in SQLPlus.

I searched the forums and internet and couldn't find any solution..

Can anyone help me with this error or anyone guide me to a clean installation on XP for Oracle9.2..

I've Java1.5, Eclipse 3.3, Tomcat 6.0 also installed.

Thanks in advance.