Add New field to customer registration page
 

Guys,
(for xcart 3.5)
i was wondering if anybody can let me know if it is possible to introduce a new firld into the customer registration page. I would appriciate if anybody can let me know how it is done.
Basically i would like to add Reffer field in the Register.tpl



Thanx

easy way is to use an existing field and change the lable text, maybe use the url field or company