This may not be the ideal way to do this, but I have done the following when wanting to send a standard letter to people in the database.
Create a report grouped on Person Code (or whatever you use as the unique identifier) and place the name and address details in the header for the group.
In the details section type in the main body of the letter using text boxes. Remember that if you need to include fields in the main body that you will need to use an unbound field to do this.
