We are planning on using com_phpshop on our company HQ site :
http://www.mediawiz.co.in
Whatever we've seen of this mambo component is that its miles ahead of any other for mambo based ecommerce.
Cannot find server
Yeah, its giving trouble because of dns entries, melbourneIT sux.
Other installs :
http://revayur.com/herbals/index.php
http://makosa.net/cms/index.php