Comparing TIMESTAMP column in SQL Server 2005

--To create the table
 
CREATE TABLE [dbo].[EMPLOYEE](
	[OBJECT_ID] [int] IDENTITY(1,1) NOT NULL,
	[EMPLOYEENAME] [varchar](30) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
	[EMPLOYEESALARY] [int] NULL,
	[DEPTID] [int] NULL,
	[TMSTAMP] [timestamp] 
) ON [PRIMARY]
 
GO
 
 
--Inserting two records to update later
 
insert into EMPLOYEE(EMPLOYEENAME)
values('ABC')
 
insert into EMPLOYEE(EMPLOYEENAME)
values('XYZ')
 
--SP Content
 
DECLARE @XMLDocPointer INT,
@strXML xml,
@sql VARCHAR(8000)
---CODE TO GET THE NEWLY INSERTED VALUE
SET @strXML ='
<RECORD>
   <EMPLOYEE>
        <OBJECT_ID>1</OBJECT_ID>
        <EMPLOYEENAME>AAAA</EMPLOYEENAME>
		<TMSTAMP>0x0000000000000FA7</TMSTAMP>
	</EMPLOYEE>
	<EMPLOYEE>
		<OBJECT_ID>2</OBJECT_ID>
        <EMPLOYEENAME>ZZZZ</EMPLOYEENAME>
		<TMSTAMP>0x0000000000000FA8</TMSTAMP>
       
  </EMPLOYEE>
</RECORD>
'
EXEC sp_xml_preparedocument @XMLDocPointer OUTPUT, @strXML
 
SELECT * into #T_TEMP
FROM
OPENXML(@XMLDocPointer,'/RECORD/EMPLOYEE',2)
WITH (OBJECT_ID INT,EMPLOYEENAME VARCHAR(30), EMPLOYEESALARY INT,DEPTID INT,TMSTAMP varchar(50))
 
SELECT * FROM #T_TEMP
 
---ERROR IN THE BELOW UPDATE STATMENT WHEN COMPAREING THE TIMESTMAP(IN WHERE CONDITION)
UPDATE EMPLOYEE
SET EMPLOYEE.EMPLOYEENAME=B.EMPLOYEENAME
FROM EMPLOYEE, #T_TEMP B
WHERE EMPLOYEE.OBJECT_ID=B.OBJECT_ID AND EMPLOYEE.TMSTAMP=B.TMSTAMP
 
select * from EMPLOYEE
 
--SELECT convert(varbinary(8),TMSTAMP) as t FROM EMPLOYEE
 
drop table #T_TEMP