I am manually adding contacts, but I can't find where to add their first name, last name etc?
Firstly, you'll need to create the first name, last name and any other fields that you'd like as "Custom Fields". Custom fields are any fields or 'data' that you wish to collect from your contacts. You can then use these custom fields in your newsletters when you send them out.

You can create your custom fields by selecting the menu item 'Manage Custom Fields' from the 'Contact List' menu. It is a simple process then to create as many custom fields as you like.

Once they have been created, you will then be able to include them when you manually add contacts.