Customize WebSignup

I would like to modify the WebSignup form in order to add the "State", the "Zip code" and the "Comments" fields in the form template. Moreover, I would like the users that have signed up to be blocked by default. How can I do that?

Thanks!

Don’t bother, I found the answer there...
http://modxcms.com/forums/index.php/topic,4759.0.html