There is no "_" in line 50 nad 77 of webmail_plus.thread_view.inc file

File webmail_plus.thread_view.inc

line 50
There is $mail_api_connection = webmail_plus_connect($thread_folder);
should be $mail_api_connection = _webmail_plus_connect($thread_folder);

line 77
There is drupal_set_title(webmail_plus_render_subject($message_header_arr['subject']));
should be drupal_set_title(_webmail_plus_render_subject($message_header_arr['subject']));

Drupal 6.9 - server debian lenny; apache2 and php5