the download is on the members-only download page here:http://www.donationc.../MemberDownloads.php
(just click version number).
you can get to that page by clicking "Downloads" at the top of any page and selecting "Members Only" (big green arrow).
from any program that is only available to members, the page of that program should have a link on left hand sidebar listing the version number, which should also take you to the Members Only download page.
let me know if you still can't find it.
and let me know if you have trouble configuring it - i suspect it may be a big confusing to get started since i didnt prepare a sample configuration which i should have. i'd be happy to help explain how to use it.