Control At Runtime

I have added a control at runtime to the CustShipForm, but I am trying
to make it so it only shows on the Packout Tab. Any Ideas? This is
what I have so far and it shows on all tabs.

Private Sub CustShipForm_Load(ByVal sender As object, ByVal args As
EventArgs) Handles CustShipForm.Load

Dim txtScanLot As New EpiTextBox
With txtScanLot
.Location = New System.Drawing.Point(150, 150)
End With
CustShipForm.Controls.Add(txtScanLot)


End Sub