[fw-mvc] Models and Modules issue...

Hi All!
I do have this structure:
/application
  models/
  modules/
    default/
    reports/
    admin/
  views/
     helpers/
     layouts/
     scripts/
        default/
        reports/
        admin/
   lib/
      Zend/
/public


My site is working perfectly, with modules, views, helpers, etc... but, I cannot find the way to tell the frontController that my models are under application/models, I have to include them manually on every controller, some code inside my Bootstrap class:
.
.
.
$self::$frontController->setModuleControllerDirectoryName('');
$self::$frontController->addModuleDirectory(self::$root . '/modules');
.
.
.
Zend_Layout::startMvc(
    array(
        'layoutPath' => self::$root . '/views/layouts',
        'layout' => 'default',
        )
    );

and some ini parameters:
includePaths.library = APPLICATION_PATH "/lib" APPLICATION_PATH "/models"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"


But my controllers cannot find any Model and I have to include them manually, could somebody tell me how to do it automatically?? I was able to do it but without modules.

Thanks in advance and best regards!

--
Ing.  Edwin Cruz