Custom Account Application wholesale

I use the dual pricing mod wholesale. What I do is create a form where clients can request an account for wholesale and then be approved by an administrator, this adds up to 6 data of importance to me and send an approval notice and mail to the administrator and the requesting user.

So far and created 6 columns in the customer table in my database, e been able to introduce into the administration panel customers.php these 6 input fields by copying existing fields ...
But do not know how to make the order form do not understand the variables proposed by zen cart there any guidelines for the enforcement of these amendments? I fail to make the form fields to add columns q created or send mail to users / administrator

I use zen cart v1.3.9d without updating with several modifications especially in your templates...
Thank you and sorry for my bad use of English

I will try to be a little more specific in what I'm looking ...

I wonder which is the variable section that allows me to make a conditional to see if the user entered ah if it is false that shows the login page
Also the variables to send an email to query and sql so I can edit the columns That I think

Thanks