>>

If Not oTest Is Nothing Then

>
>Just curious, are either of IsEmpty() or IsNull() the same as the above?

No, test the following in VBScript

Dim oObj
Set oObj = Nothing
If IsObject(oObj) Then
  MsgBox "It's an object"
  IF IsNull(oObj) Then
    MsgBox "...and it's null"
  Else
    MsgBox "...but it's not null"
    If IsEmpty(oObj) Then
      MsgBox "...and it's emtpy!"
    End if
  End if
End If

You'll get two messageboxes. The first will say it's an object, and the second will say that it's not null.