terrio,
For the author, fill in the document properties using File - properties -
on the summary tab type the authors name, click OK. Now choose Insert -
Fields - document properties category - click Author, OK.
For the typist you can use one of the other property fields on the summary
tab. Or make your custom doc property, use the custom tab and add a
property. You can insert it following the same method described, this time
click on DocProperty and select the newly made field in the list.