YT Downloader - Co tu jest źle?

Imports System.Net
Imports System.Text.RegularExpressions

Public Class Form1


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim s As New WebClient
        Dim y As String = s.DownloadString("http://www.youtube-mp3.org/api/itemInfo/?video_id=" + TextBox1.Text)
        Dim linkoriginal As New System.Text.RegularExpressions.Regex("""image"" : ""(\S+)""\D+\S+\D+""h"" : ""(\S+)""")
        Dim matches As MatchCollection = linkoriginal.Matches(y)
        For Each showlink As Match In matches
            Dim u As String = (showlink.Groups(1).Value)
            Dim t As String = (showlink.Groups(2).Value)
            TextBox2.Text = "http://www.youtube-mp3.org/get?video_id=" + TextBox1.Text + "&h=" + t
            PictureBox1.Image = New Drawing.Bitmap(New IO.MemoryStream(s.DownloadData(u)))
        Next
    End Sub
End Class

Dim y As String = s.DownloadString("http://www.youtube-mp3.org/api/itemInfo/?video_id=" + TextBox1.Text)