CakePHP: Show other field instead of id - php

Question

I'm working in a web aplication for board role playing games management. Its very simple for now.
I have 3 tables:
(1) Game
* id
* title
* user_id (game master)
(2) Sheet
* id
* name
* game_id
* user_id
(3) Users
* id
* username
Well, I have two problems:
1 - In Sheet view, i cant show the game tittle or the user name, just his id's
2 - In Game view, I cant show the user name (the game master).
I try a lot of answers found here for similar problems, but nothing works. I'm i little bit frustrated :( please help.
Here my code details:
MODELS:
/*User Model*/
class User extends AppModel {
public $name = 'User';
public $hasMany = array(
'Sheet' => array(
'className' => 'Sheet',
'foreignKey' => 'user_id'
),
'Game' => array(
'className' => 'Game',
'foreignKey' => 'user_id'
)
);
}
/*Game Model*/
class Game extends AppModel {
public $name = 'Game';
public $belongsTo = array(
'Master' => array(
'className' => 'User',
'foreignKey' => 'user_id'
)
);
public $hasMany = array (
'Chars' => array (
'className' => 'Sheet',
'foreignKey' => 'game_id'
)
);
}
/*Sheet Model*/
class Sheet extends AppModel {
public $name = 'Sheet';
public $belongsTo = array (
'Party' => array (
'className' => 'Game',
'foreignKey' => 'game_id'
),
'Player' => array (
'className' => 'User',
'foreignKey' => 'user_id'
)
);
}
CONTROLLERS:
/*SheetController*/
class SheetController extends AppController {
public $helpers = array('Html', 'Form');
var $name = 'Sheets';
public function view($id = null) {
$this->Sheet->id = $id;
$this->Sheet->recursive = 2;
if (!$this->Ficha->exists()) {
throw new NotFoundException(__('La ficha no existe'));
}
$this->set('sheet', $this->Sheet->read(null, $id));
}
}
class PartidasController extends AppController {
public $helpers = array('Html', 'Form');
var $name = 'Partidas';
public function view($id) {
if (!$id) {
throw new NotFoundException(__('Invalid post'));
}
$this->Partida->recursive=2;
$partida = $this->Partida->findById($id);
if (!$partida) {
throw new NotFoundException(__('Invalid post'));
}
$this->set('partida', $partida);
}
}
VIEWS:
/*Game View*/
<?php echo $game['Game']['title']; ?>
<strong>Master: </strong>
<?php
echo $this->Html->link($game['Game']['user_id'], array('controller' => 'Users','action' => 'view',$game['Game']['user_id'])); ?>
/*Sheet View*/
<?php echo $this->Html->link($sheet['Sheet']['nombreFicha'],array('controller' => 'sheets', 'action' => 'view', $sheet['Sheet']['id']));?>
<?php echo $this->Html->link($sheet['Sheet']['user_id'],array('controller' => 'users', 'action' => 'view', $sheet['Sheet']['user_id'])); ?>
<?php echo $this->Html->link($sheet['Sheet']['game_id'],array('controller' => 'games', 'action' => 'view', $sheet['Sheet']['game_id'])); ?>