Thank you for the reply. I did not understand how to create the directory structure. I moved all of the files from the PLUGINMANAGER directory to the Mantis root level. When going to plugin_page.php, I get the following error:
Fatal error: Call to undefined function: db_query() in /home/mydomain/www/mantis/core/plugin_api.php on line 69
Any advice is greatly appreciated. Thanks in advance for the support.
Joel