yes form is visible.
in form1:
VB Code:
  1. Private Sub DoRefresh()

  2.         WebBrowser1.Navigate("http://www.delirious.co.uk")

  3.     End Sub

  4.  
  5.     Public Sub CallDoRefreshViaMethodInvoker()

  6.         Me.Invoke(New MethodInvoker(AddressOf DoRefresh))

  7.     End Sub

in clsServer class:
VB Code:
  1. Private Sub AcceptClient()

  2.         Dim pendingClient As TcpClient

  3.         Dim nameOfClient As String

  4.         Dim IPofClient As String

  5.         Dim refreshbrow As String

  6.         pendingClient = Listener.AcceptTcpClient()

  7.         reader = New System.IO.StreamReader(pendingClient.GetStream)

  8.         nameOfClient = reader.ReadLine()

  9.         IPofClient = reader.ReadLine()

  10.         refreshbrow = reader.ReadLine()

  11.  
  12.         Clients.Add(pendingClient, nameOfClient)

  13.         My.Computer.FileSystem.WriteAllText("C:\displog.txt", _

  14.         Date.Now + " ID:" + nameOfClient + " IP:" + IPofClient + " - Connected" + vbCrLf, True)

  15.         Clients.Clear()

  16.  
  17.         Form1.CallDoRefreshViaMethodInvoker()

  18.  
  19.     End Sub

thanks