yeah, i am sure they know why they don't put it on a public page...
as i sent out the plug-in in its current development state to some people it might even be possible that these people didn't create the statistics feature from scratch but only did the last touches to my code, which is already in a pretty advanced state. and instead of giving something back for my work they don't release the source code here but try to make money out of it
even if you desperately want this feature and would be willing to spend money on it: please don't support such behavior which destroys the open source and community idea which has made xREDIRECT what it is today: a free and full-featured plug-in transparent to everyone.
just don't buy this shit...