Need Help.. Picture uploader function for windows mobile 6 net cf 3.5

Question

all runs perfect now big thx ... i post the code for all that have the same problem, the iso encoding was the problem .. but how i said big thx ..

heres the code for all with the same prob:

    Public Function uploadPic(ByVal pic As Byte(), ByVal filename As String, ByVal user As String)
    Dim encoding As String = "iso-8859-2"
    'Erzeugen einer einzigartigen identifikation
    Dim gui As String = Guid.NewGuid().ToString()
    'Diese wird für den Header und den footer der Daten benötigt
    Dim head As String = String.Format("--{0}", gui)
    Dim foot As String = String.Format("--{0}--", gui)
    'Einen Stringbuilder erstellen, in dem wir nun bequem die
    'benötigten POST Daten speichern können
    Dim contents As StringBuilder = New StringBuilder()
    'Benutzerdaten schreiben (benutzername)
    contents.AppendLine(head)
    contents.AppendLine(String.Format("Content-Disposition: form-data; name=""{0}""", "username"))
    contents.AppendLine()
    contents.AppendLine(user)
    'Header schreiben
    contents.AppendLine(head)
    'Bildinformationen schreiben, Bildkopf und die Binärdaten
    Dim fileHeader As String = String.Format("Content-Disposition: file; name=""{0}""; filename=""{1}""", "media", user & ".jpg")
    Dim fileData As String

    fileData = System.Text.Encoding.GetEncoding(encoding).GetString(pic, 0, pic.Length)
    'Informationen zu dem Übergebenen Dateityp schreiben
    contents.AppendLine(fileHeader)
    contents.AppendLine(String.Format("Content-Type: {0}", "image/jpeg"))
    contents.AppendLine()
    contents.AppendLine(fileData)
    'Durch schreiben des footers signalisieren dass keine Daten mehr kommen
    contents.AppendLine(foot)
    'MessageBox.Show(contents.ToString)
    'Stream Reader zum lesen der Antwort von Twitpic
    Dim reader As StreamReader
    Dim result As String
    Dim response As HttpWebResponse
    'Einen Webrequest zu der TwitPic API erstellen
    Dim request As HttpWebRequest = WebRequest.Create("http://urspacecity.de/uploadpic/up.php")
    request.ContentType = String.Format("multipart/form-data; boundary={0}", gui)
    request.Method = "POST"
    'Die Daten die noch im Stringbuilder als String vorliegen
    'in das byte (Binär)-Format umwandeln, damit die API diese annimt
    Dim bytes As Byte() = System.Text.Encoding.GetEncoding(encoding).GetBytes(contents.ToString())
    request.ContentLength = bytes.Length
    'Einen Stream aus dem WebRequest erstellen
    Dim writer As Stream = request.GetRequestStream()
    'Die Binären Daten in den Strom schreiben
    writer.Write(bytes, 0, bytes.Length)
    writer.Flush()
    writer.Close()
    response = request.GetResponse()
    reader = New StreamReader(response.GetResponseStream)
    result = reader.ReadToEnd
    reader.Close()

    Return result
End Function