Display Signup info in custom node template
You can always built your own module and implement a hook_node_view() and put this form into the node content like:

function YOURMODULE_node_view($node, $view_mode, $langcode) {
 $node-&gt;content['signup_form'] = array(
  '#item'     =&gt; 'item',
  '#markup' =&gt; render(drupal_get_form('this forms ID')),
  '#theme' =&gt; 'my_signup_form_theme' //optional
 );
}


And to get even more configurable and cool-looking you could insert this new piece of content to the "Display fields" drag and drop form of the respective content type with 

 hook_extra_fields()


like:

function YOURMODULE_field_extra_fields() {
    $extra['node']['node-TYPE']['display'] = array(
         'signup_form' =&gt; array(
            'label' =&gt; t('SignUp form'),
            'description' =&gt; t('SignUp form imported to Node Content'),
            'weight' =&gt; 10,
         ),
}


And now you have 

$node-&gt;content['signup_form'] 


in your tpl