An example Thesis 2 box demonstrating how to register a Custom Post Type (CPT) within boxes.

example-thesis-box-with-cpt

<?php
/*
Name: Example CPT registration in a Thesis 2 Box
Author: Matthew Horne - Zerogravityskins.com
Description: enter your description here.
Version: 1.0
Class: my_custom_class
*/

class my_custom_class extends thesis_box {
	
        protected function translate() {
                $this->name = __('Example CPT registration in a Thesis 2 Box', $this->_class);
        }

        protected function construct() {
		 // since the action hoiok is called after the register post type hook
		 // you will need to simply call your function like so.
		 $this->faq_custom_init();
        }
        
        protected function html_options() { // basic HTML options add more if necessary
		global $thesis; 
		$html = $thesis->api->html_options();
		unset($html['id']);
		return $html;
        }  
        
        public  function faq_custom_init() { // example FAQ post type
        	
		$labels = array(
			'name' => 'FAQ',
			'singular_name' => 'FAQ',
			'add_new' => 'Add New FAQ',
			'add_new_item' => 'Add New FAQ',
			'edit_item' => 'Edit FAQ',
			'new_item' => 'New FAQ',
			'all_items' => 'All FAQ',
			'view_item' => 'View FAQ',
			'search_items' => 'Search FAQ',
			'not_found' =>  'No FAQ found',
			'not_found_in_trash' => 'No FAQ found in Trash', 
			'parent_item_colon' => '',
			'menu_name' => 'FAQ',
		);
		
		$args = array(
			'labels' => $labels,
			'exclude_from_search' => false,
			'public' => true,
			'publicly_queryable' => true,
			'show_ui' => true, 
			'show_in_menu' => true, 
			'query_var' => true,
			'rewrite' => array( 'slug' => 'FAQ' ),
			'capability_type' => 'post',
			'has_archive' => false, 
			'hierarchical' => false,
			'taxonomies' => array('category'),
			'menu_position' => null,
			'supports' => array( 'title', 'author', 'thumbnail', 'excerpt', 'editor' )
		); 
		
		register_post_type( 'faq', $args );
	        
	}

        public function html($args = array()) {
                global $thesis;
                extract($args = is_array($args) ? $args : array());
                $tab = str_repeat("\t", !empty($depth) ? $depth : 0);
                // your output goes below here
                            
        }  
}