Got it working.
CODE
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Loads for player
Flash.AllowScriptAccess = "always"
Flash.SetVariable("registerWithJS", "1")
Flash.Movie = "http://d.yimg.com/cosmos.bcst.yahoo.com/up/fop/embedflv/swf/fop.swf"
Flash.Play()
End Sub
Private Sub Play_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlay.Click
VideoID = "v" & ListBox1.SelectedItem 'item as 123456
Flash.CallFunction("<invoke name=""playID"" returntype=""xml""><arguments><string>" & VideoID & "</string></arguments></invoke>")
End Sub
Private Sub Stop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStop.Click
Flash.CallFunction("<invoke name=""vidStop"" returntype=""xml""></invoke>")
End Sub
Private Sub Pause_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPause.Click
Flash.CallFunction("<invoke name=""vidPause"" returntype=""xml""></invoke>")
End Sub