dialogs

I have written this program in Borland TPW 1.5, and i keep getting application errors. please help, the file is stock.res is available by emailing me(i don't think you can upload files).

program Stock_exchange;

{$R STOCK.res}

uses WinTypes, WinProcs, WObjects, wincrt;

type
  PTestDialog = ^TTestDialog;
  TTestDialog = object(TDialog)
    procedure butt(var Msg: TMessage); virtual id_First + 159 ;  
   end;

type
  PMyWindow=^TMyWindow;
  TMyWindow=object(TWindow)
    constructor Init(AParent: PWindowsObject; Atitle: PChar);
    procedure players(var msg:tmessage); virtual cm_first + 51;
  end;    
     
  TMyApplication = object(TApplication)
    procedure InitMainWindow;virtual;    
  end;
   
var MyApp:TMyApplication;          
 
constructor TMyWindow.Init(AParent: PWindowsObject; Atitle: PChar);
begin  
  TWindow.Init(AParent, Atitle);
  attr.menu :=loadmenu(hinstance, pchar(100));
end;

procedure ttestdialog.butt(var msg: tmessage);
var TextItem: PChar;
begin
 getdlgitemtext(getdlgitem(hwindow,151),151,textitem,20);
 
end;

procedure TMyWindow.Players(var Msg: tmessage);
begin
     Application^.ExecDialog(New(PTestDialog, Init(@Self, 'DIALOG_1')));
end;

procedure TMyApplication.InitMainWindow;
begin
  MainWindow:=New(PMyWindow, Init(nil,'Menus'));
end;

begin
   myapp.init('Video');
   myapp.run;
   myapp.done;
end.
 
please help!

Please use POBWEST@YAHOO.COM (as i can't read mail from the stated one in the profile for the next week)