Общие принципы работы с сайтом vkontakte.ru

function vk_login(Login, Pass : string; IdHTTP : TIdHTTP): Boolean;
var
  sl : TStringList;
  text : string;
begin
  sl := TStringList.Create;
  sl.Add('email=' + Login + '&pass=' + Pass + '&expire=&vk=');
  text := IdHTTP.Post('http://login.vk.com/?act=login',sl);
  if Pos('Aoia',text)<>0 then begin
    MessageBox(Application.Handle,'Iaaa?iua aaiiua: Eiaei , Ia?ieu','Ioeaea',0);
    Result := False;
  end else begin
    text := Copy(text,Pos('name=' + #39 + 's' + #39,text)+16,PosEx(#39,text,Pos('name=' + #39 + 's' + #39,text)+17)-Pos('name=' + #39 + 's' + #39,text)-16);
    IdHTTP.Request.CustomHeaders.Add('Cookie:remixchk=5; remixsid=' + text);
    Result := True;
  end;
  sl.Free;
end;

vk_login(Edit1.Text,Edit2.Text,IdHTTP1);

function VK_ParsEmail(s:string; IdHTTP1:TIdHTTP): TStringList;
var
  i : Integer;
  mess_full, mess_text,
  mess_id, mess_new,
  mess_aut, mess_aut_id,
  mess_date, mess_title : string;
  sl : TStringList;
begin
  Result := TStringList.Create;
  i := 1;
  s := Copy(s,PosEx('</tr>',s,Pos('<div id="messages_wrap">',s))+6,PosEx('</table>',s,Pos('<div id="messages_wrap">',s))-PosEx('</tr>',s,Pos('<div id="messages_wrap">',s))-6);
  while PosEx('<tr ',s,i)<>0 do
  begin
    mess_full := Copy(s,PosEx('<tr ',s,i),PosEx('</tr>',s,PosEx('<tr ',s,i))-PosEx('<tr ',s,i));

    // Iieo?aiea id niiauaiey
    mess_id := Copy(mess_full,Pos('id="',mess_full)+8,PosEx('"',mess_full,Pos('id="',mess_full)+9)-Pos('id="',mess_full)-8);

    // iiaia ee yoi niiauaiea
    if Pos('class='+#39+'newRow'+#39,mess_full)<>0 then mess_new := '1' else mess_new := '0';

    if mess_new = '1' then
    begin
      // Io eiai niiauaiea
      mess_aut := Copy(mess_full,PosEx('">',mess_full,Pos('<div>',mess_full)+19)+2,PosEx('</a>',mess_full,PosEx('">',mess_full,Pos('<div>',mess_full)+19)+3)-PosEx('">',mess_full,Pos('<div>',mess_full)+19)-2);

      // EA iieuciaaoaey, eioi?ue i?eneae niiauaiea
      mess_aut_id := Copy(mess_full,Pos('href="',mess_full)+7,PosEx('">',mess_full,Pos('href="',mess_full)+8)-Pos('href="',mess_full)-7);

      // Aaoa, eiaaa i?eoei niiauaiea
      mess_date := Copy(mess_full,Pos('class="date">',mess_full)+13,PosEx('</div',mess_full,Pos('class="date">',mess_full)+14)-Pos('class="date">',mess_full)-13);

      //Oaia niiauaiey
      mess_title := Copy(mess_full,PosEx('<span>',mess_full,Pos('new messageSubject',mess_full))+6,PosEx('</span>',mess_full,Pos('new messageSubject',mess_full))-PosEx('<span>',mess_full,Pos('new messageSubject',mess_full))-6);

      // Oaeno niiauaiey
      mess_text := IdHTTP1.Get('http://vkontakte.ru/mail.php?act=show&id='+ mess_id);
      mess_text := Copy(mess_text,PosEx(';">',mess_text,Pos('class="messageText"',mess_text))+3,PosEx('</div>',mess_text,Pos('class="messageText"',mess_text))-PosEx(';">',mess_text,Pos('class="messageText"',mess_text))-3);
    end;

    Result.Add(mess_aut+' '+mess_aut_id+' '+mess_date+' '+mess_text);
    i := PosEx('<tr ',s,i)+2;
    Sleep(300);
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Memo1.Lines := VK_ParsEmail(IdHTTP1.Get('http://vkontakte.ru/mail.php'),IdHTTP1);
end;