User Referral module - require a tiny update

Hi there,
I am using that simple User-Referral module, it is working great.
what I'm looking for:

Each user have his own subdomain (using subdomain module), and what I want is that when NEW user go into X subdomain (for example: user.example.co.il), and sign-up, the "user" will see that under his/her name/
the user-referral does this, but provide a special link for each new user, that he can use it with to reffer other new users..

hope I made my self clear regarding what I need.
I gues it takes only couples of minutes to figure what to change in the php code, and, I allready payied a few times for developers around here to do small jobs (for example - 50$ for 1 hour of work).
Thanks