[solved] nested sets and hmvc

[eluser]Unknown[/eluser]
Hello,

I have a problem (really ?).
I'm trying to use nested sets (http://codeigniter.com/wiki/Nested_sets/) with hmvc.
I created my module like this (using the nested-sets example files):
modules
--categories
-----controllers
-------categories.php
-----views
--------categories_view.php
-----models
--------categories_model.php

The view for edit/modify categories are rendered correctly but not filled, The added categories is present in the db but doesn't appears in the select form or list.
I've tried to extend MX_Controller but nothing.

Is there someone who has luck with this ?

Codeigniter is good !
Hmvc seems good to me (don't understand all)
nested sets it really cool !

[eluser]InsiteFX[/eluser]

Code:

$this->load->vars($data);

$this->load->view('your_view');

InsiteFX

[eluser]Unknown[/eluser]
Thanks for your answer,

but the problem came from false left-right values for the root category node: 0-1
It must be: 1-2

The query to the db returned empty set.

Setting them manually and all is done