I recently added the additional customers fields to my website http://www.planet3press.com. The site is still currently in test mode so there are no visitors to worry about.

What i'm trying to do is to add a new field to the customer Account page and I seem to have added the field okay - my issue is the fact that the field is a text box and not a radio button. I need the radio buttons to say Residential & Commercial.

The code I input on the php side was for this to be a radio button but i'm assuming that I am going to have to add some SQL in order to make the radio button appear instead of a text box. i've attached images from where the field is on my site and the properties /module in the admin side. I'm okay with php but MySQL is complete gibberish to me. However if someone were to be able to give me the code to add I wouldn't have any issue adding it.
Any help is greatly appreciated!

Here is my server/version info:
PHP Version: 5.2.6 (Zend: 2.2.0) PHP Memory Limit: -1
Database Host: localhost (127.0.0.1)
Server OS: Linux 2.6.22-19_1.BHsmp
Database: MySQL 5.0.45-community-log and it's running on a CGI/FastCGI Server.