WP-E-Commerce-User-Management is a project mainly written in PHP, it's free.
A user management plugin for WP E-Commerce
=== Plugin Name === Contributors: Poplicola Author Link: http://poplicola.com Tags: wp-ecommerce, user management Tested up to: 3.0.1
Allows Wordpress administrators to edit user data saved by WP E-Commerce.
== Description ==
Allows Wordpress administrators to edit user data saved by WP E-Commerce.
== Installation ==