How do I time seek VLC using VB.Net?

Public Class Form1
        Dim Paused As Boolean = False
        Dim Started As Boolean = False
        Dim PlayedSecond As Boolean = True
        Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
            PlayedSecond = False
            AxVLCPlugin21.playlist.items.clear()
            AxVLCPlugin21.playlist.add("https://vula.uct.ac.za/access/content/group/fe879ca4-927a-4fca-9cc9-33b12c348b37/vids/Lessig-ItIsAboutTimeGettingOurValuesAroundCopyright522.flv")
            AxVLCPlugin21.playlist.play()
            Started = True
        End Sub

        Sub playsecond()
                AxVLCPlugin21.playlist.items.clear()
                AxVLCPlugin21.playlist.add("http://lsta2011.wikispaces.com/file/view/Rogue%20Waves.mp4")
                AxVLCPlugin21.playlist.play()
                PlayedSecond = True
                Started = False
        End Sub

        Private Sub AxVLCPlugin21_pause(sender As Object, e As EventArgs) Handles AxVLCPlugin21.pause
                Paused = True
        End Sub

        Private Sub IsFinished_Tick(sender As Object, e As EventArgs) Handles IsFinished.Tick
            If Not AxVLCPlugin21.playlist.isPlaying And Paused = False And Started = True And PlayedSecond = False Then
                playsecond()
                Started = True
            End If
        End Sub

        Private Sub AxVLCPlugin21_play(sender As Object, e As EventArgs) Handles AxVLCPlugin21.play
            Paused = False
        End Sub
    End Class