[drupal-support] node_example.module output?

I'm trying to write a custom node module based on the node_example.module, but it acts like Drupal 4.6.2 is filtering the output of node_example.module's theme_node_example_order_info(). The <div xxxx> and </div> tags of the example disappear (at least with any of the themes I've tried, both phptemplate and xtmpl style). I've also tried adding things like theme('table', $header, $rows) to its $output and the tags don't make it to my browser (but the content of the header and rows does).

Is node_example up to date? (If so, how can I add tables, divs, etc to theme_node_example_order_info()'s output?)

Or is there a better example for a custom node type?