Form - VBWEB

O que vc quer é um form "always on top":
Ponha num módulo:
Declare Function SetWindowPos Lib "user32" _
    (ByVal hwnd As Long, _
    ByVal hWndInsertAfter As Long, _
    ByVal X As Long, _
    ByVal Y As Long, _
    ByVal cx As Long, _
    ByVal cy As Long, _
    ByVal wFlags As Long) As Long

Public Sub AlwaysOnTop(myfrm As Form, SetOnTop As Boolean)

    If SetOnTop Then
        lFlag = HWND_TOPMOST
    Else
        lFlag = HWND_NOTOPMOST
    End If

    SetWindowPos myfrm.hwnd, lFlag, _
    myfrm.Left / Screen.TwipsPerPixelX, _
    myfrm.Top / Screen.TwipsPerPixelY, _
    myfrm.Width / Screen.TwipsPerPixelX, _
    myfrm.Height / Screen.TwipsPerPixelY, _
    SWP_NOACTIVATE Or SWP_SHOWWINDOW
End Sub

Quando for exibir seu form, use:
AlwaysOnTop Form1, True