Wordpress Email Script

I need someone to write a small script that fires an email to me when someone registers on my Wordpress website. It is a business directory website and I am using the following plug-in: www.businessdirectoryplugin.com

Basically, when someone joins the site I want to be notified by email.

I'm pretty certain the following plugin can be amended to suit the requirements: http://wordpress.org/extend/plugins/post2mail/

I look forward to receiving your bids!