Hi
i am developing an ecommerce site for an automobile selling site. In that there are three kinds of user groups like ordinary customers, dealers, forum members of other external sites. i want different registration form for these different groups.

For example, when the user wants to register in the site, he/she has to select type as consumer/dealer/forum member first. As per his/her selection the fields in the registration form wants to vary.

For normal consumers standard details should be shown. For dealers, they have to enter dealership details like company name, etc..
For forum members the have to fill their forum details.

I don't want to show all the fields for all users.
I found that using community builder i can do that.
May i do like this using this component? How?

I am new to joomla and i don't know how to make this. please suggest me the details..

Thanks..