Without going into too much detail here almost everything is covered on various coding sites as far as what the individual features do. One I tend to gravitate toward is:
http://w3schools.com/html/html_forms.asp
All the easysitewizard is doing in the case of the form creator is handling the code for them, the features are still the same. What it breaks down to though is the "name" is how the radio button/textbox will be labeled when it is sent to you and the "Value" is what will appear on the screen when they visit the live site. So, as in the example on the above link, a good value for a radio button would be "male" or "female" and the "name" would be something like "gender" or "sex".
Hope this helps
