IdHTTP ошибка - 404 не найден

TForm1 *Form1;
//---------------------------------------------------------------------------
AnsiString Pars(AnsiString T_, AnsiString ForS, AnsiString _T)
{
  int a, b;
  if((T_ == "")||(ForS == "")||(_T == ""))
    return "";
  a = ForS.Pos(T_);
  if(a == 0)
    return "";
  else
    a += T_.Length();
  ForS.Delete(1, a - 1);
  b = ForS.Pos(_T);
  if(b > 0)
    return ForS.SetLength(b - 1);
  else
    return "";
}
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
  TStringList *login = new TStringList();
  AnsiString mail = LabeledEdit1->Text;
  AnsiString pass = LabeledEdit2->Text;
  login->Add("st.posted=set");
  login->Add("st.email=" + mail);
  login->Add("st.password=" + pass);
  login->Add("button_go=Войти");
  AnsiString StrPage = IdHTTP1->Get("http://odnoklassniki.ru/");
  AnsiString page = Pars("<form action=\"", StrPage, "\"");
  AnsiString result = IdHTTP1->Post(page, login);
  if(result.Pos("Logoff"))
    Label1->Caption = "Залогинились!";
  else
    Label1->Caption = "Не залогинились!";
  delete login;
}
//---------------------------------------------------------------------------