Excel and VB?! y it happen???! (urgent for me) thankz

dearest expert,
actually im already successful in writing my excel spreadsheet by using VB. there was no problem at all

this is the format im using to create it.
=====================================================
Function excelIn(ByVal sExcelFile2 As String)

'sExcelFile2 is "Myexcel.xls"

Dim ExcelFSO As New FileSystemObject
Dim xlApp As New Excel.Application
Dim xlBook As Excel.Workbook
Dim copyFile As File

On Error GoTo ErrExcel

'Set xlApp = New Excel.Application

On Error GoTo ErrExcel

Set xlApp = CreateObject("Excel.Application")

On Error GoTo ErrExcel

    Set copyFile = ExcelFSO.GetFile(sExcelFile2)

    Set xlBook = xlApp.Workbooks.Open(sExcelFile2)

    With xlBook.Worksheets("Master TPM").Select

      lnum = 5
       For Each myroe In Cells().CurrentRegion.Rows
        If (xlApp.Cells(lnum, 1)) <> "" Then
            lnum = lnum + 1
            GoTo CountAgain      
        Else
            GoTo NextStage
        End If

       Next

NextStage:

        xlApp.Cells(lnum, 1) = (sSystemDate, "mm/dd/yy"))
        xlApp.Cells(lnum, 2) = sMySite
        xlApp.Cells(lnum, 3) = sMyChannel
        Columns("A:A").EntireColumn.AutoFit
        Columns("B:B").EntireColumn.AutoFit
        Columns("C:C").EntireColumn.AutoFit
    End With

ErrExcel:
    sOUT = "There was an error in excel" & vbCrLf & Error$
    sOUT = "ERR:" & str(Now) & " Emg:" & sOUT
   
exitdoor:
    xlBook.Save
    xlBook.Close
    xlApp.Quit
    Set copyFile = Nothing
    Set xlBook = Nothing
    Set xlApp = Nothing
    Set ExcelFSO = Nothing
===================================================
now im need to do another excel file. let say name is as myExcel2.xls
so in this case i still use the same code as wat im mention above.cz this two xls file is in the same format n same data..the different is jst on their file name.
but when come to that  "for each myroe.cells().." there got an error message call " METHODS 'CELLS' OF OBJECT '_GLOBAL' FAILED"
hw come this will happen when im wanna write data in to myExcel2.xls but there was no error in myexcel.xls.
why it happen???
can u jst help me ???
need it by tomolo...hw..