The email notifications are all templates which reside in theResfolder of each machine. You can edit the response and save it, so the updated version is now the new email template. The file path for the template you are wanting isC:\ProgramFiles\VisitorRego.NET\Res\EmailTemplate.htm.
Right-click on the file and chooseOpen With then choose Notepad. You add or remove database fields or text you wish displayed to the staff member through here. Use square brackets for any DB values.
Copy and replace the template file on each machine running VisitorRego.