How to add a block on member's profile?

[Lynne]

You need to render your template first and then assign it to the template_hook. Cellarius wrote a really good article that you may be interested in - [vB4] Rendering templates and registering variables - a short guide

Example from his tutorial:

PHP Code:

All your code up here, and then....
/* render template and register variables */
$templater = vB_Template::create('mytemplate');
    $templater->register('my_var', $my_var);
    $templater->register('my_array', $my_array);
$template_hook['profile_sidebar_stats'] .= $templater->render();