New User Email from WordPress – How to change?

using:
wp 2.8.6
wp-member plug-in for membership registration

Situation:
Blog name: Master Technician
URL: https://www.mastertechmag.com

New User receives Email from wordpress:
From: “WordPress” <[email protected]>
Subject: [Master Technician] Your username and password.

Email contents:
Username: xxx
Password: xxx
like to – https://www.mastertechmag.com/wp/wp-login.php

Problem:
https://www.mastertechmag.com/wp/wp-login.php logs into the user’s profile. Granted, Users can get to website via this process.

However, this is not preferred…. does anyone know how to MANUALLY go into change the Email From address and the Email Contents (mainly the link)??

I’ve seen a plug-in for this, however doesn’t seem to allow me to change the Email contents…therefore the plug-in is not sufficient.

Suggestions are appreciated.

Thank you in advance.