vbscript to replace text in a file

I am trying to update a file on a bunch of systems with a vbscript, the script finds the severs but it deletes the contents of the file, I read in the file, close it then write to it but it appears the write is not happening.

'====================
'
' Type:      VBScript
'
' NAME:      TSMFix.vbs
'
' AUTHOR:    Bob Smith
'
' PURPOSE:   This script will parse a list of servers, and modify the TSM
'            config. It requires servers.txt in the same folder as this script.
'            Servers.txt should contain one machine name per line.
'
' COMMENTS:    
'
' *****************************************************
' ~~~Begin Script~~~

Option Explicit
' Declare Everything!
Dim objFSO, objTextFile, objTextFile1, objTextFile2, objWMIService, objItem, objService, objChksrv, i
Dim strComputer, Line, strNextLine, Srvpad, colItems, colListOfServices, oDrives, WshNetwork
Dim drive, objShell

On Error Resume Next

Const ForReading = 1, ForWriting = 2

Set objFSO = CreateObject("Scripting.FileSystemObject")

' Opens the servers.txt file to find the server name(s)
' -----------------------------------------------------
Set objTextFile = objFSO.OpenTextFile("C:\TsmFix\servers.txt", ForReading)

Set WshNetwork = WScript.CreateObject("WScript.Network")
Set oDrives = WshNetwork.EnumNetworkDrives
Set objShell = WScript.CreateObject("WScript.Shell")

Do Until objTextFile.AtEndOfStream
strComputer = objTextFile.Readline
'Check if the Server is online and has TSM folder
' -----------------------------------------------------
Srvpad = "\\"&strComputer&"\c$\program files\TIVOLI\TSM\baclient"

IF objFSO.FolderExists(Srvpad) = FALSE THEN
WScript.Echo "Server " & strServer & " doesn't have TSM or is offline!"
WScript.Quit
END If

' Backup current TSM config
objFSO.CopyFile Srvpad & "\dsm.opt" , Srvpad &"\dsm.opt.old"

' Wait for copy to complete
WScript.Sleep 10000

' Set TSM Service name
' -----------------------------------------------------
Set objService = GetObject("WinMgmts:{impersonationLevel=impersonate}!//" _
& strComputer & "/root/cimv2:Win32_Service.Name='TSM Scheduler'")

' Stop TSM Scheduler
' -----------------------------------------------------
objService.StopService

' Set the file for Reading / Writing
' -----------------------------------------------------
Set objTextFile2 = objFSO.OpenTextFile(Srvpad & "\dsm.opt", ForReading)

       strText = objTextFile2.ReadAll
       objTextFile2.Close
       strNewText = Replace(strText, "HYDRA1", "James")

Set objTextFile2 = objFSO.OpenTextFile(Srvpad & "\dsm.opt", ForWriting)
objTextFile2.WriteLine strNewText
objTextFile2.Close
' -----------------------------------------------------
' Wait 10 seconds for things to settle down
WScript.Sleep 10000

' Start TSM Scheduler
objService.StartService
Wscript.Echo "The TSM Scheduler service on " & strComputer & " has restarted succesfully."

' Go get next computer name and start over...
Loop

objTextFile.Close

' -----------------------------------------------------
' Functions
' -----------------------------------------------------

'Read text file
Function GetFile(FileName)
If FileName<>"" Then
Dim FS, FileStream
Set FS = CreateObject("Scripting.FileSystemObject")
on Error resume Next
Set FileStream = FS.OpenTextFile(FileName)
GetFile = FileStream.ReadAll
End If
End Function

'Write text file.
Function WriteFile(FileName, Contents)
Dim OutStream, FS

on Error Resume Next
Set FS = CreateObject("Scripting.FileSystemObject")
Set OutStream = FS.OpenTextFile(FileName, 2, True)
OutStream.Write Contents
End Function