Node convert 7.x-1.1 was working fine. When I upgraded to 1.2, I got the following error.

Notice: Undefined index: node_convert_conversion_form in drupal_retrieve_form() (line 806 of /cwmars/drupal-7.18/includes/form.inc).
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'node_convert_conversion_form' not found or invalid function name in drupal_retrieve_form() (line 841 of [[/cwmars/drupal-7.18/includes/form.inc).]]

Not sure what changed between versions that would break this.