Internal forms will require each user to log in to FormTools. If you want a form on your website for visitors to submit, you'll need an external form. Follow this tutorial:
http://docs.formtools.org/userdoc/?page=adding_forms
There is also a form builder module if you are less experienced with HTML.
http://docs.formtools.org/userdoc/?page=adding_forms
There is also a form builder module if you are less experienced with HTML.