Purchased the software and received licensed for it. This is the site link 
http://buildyourcnc.com/CNCsoftware.aspxand they advertis your product. The are a very reputable site.
The below is one of many emails between myself and the Buildyourcnc company.
see belolw.
How can my version of the Mach3 software be bad when I downloaded it from the Mach3 website.??
Your immediate attention to this matter will be appreciate.
Thank you. 
Patrick,
Still have not received the license for the Mach 3 software.  I would like to have it today if all possible.
Thank you.
Robert C. Kelemen
Rural Hall, N.C.
Fm: Patrick Hood-Daniel 
Sent: Tuesday, Ma y 31, 2011 7:06 PM
To: robert 
Subject: Re: software license 
Hi Robert,  
We will have the license to you momentarily.  I made the request from the developer of the software.
On Tue, May 31, 2011 at 6:01 PM, robert <rkelemenhhr@hotmail.com> wrote:
Receipt No: 2488-9425-7674-4494 for Item #97, Mach 3 software full license purchased this date. 
When will I receive the license?
Thanks,
Robert C. Kelemen