3
I once had iStats 2.2 (a.k.a. 'WebStats') working on an old Xoops site, but you need to add some code to the theme.html to make it work. The reports are quite detailed, but visitor accuracy is a little questionable IMHO.
Later versions or clones may be more up to date, but if you download the original you may need to replace some deprecated PHP code.
For example in counter.php
replace
$page = $HTTP_GET_VARS['page'];
if ( !isset($HTTP_COOKIE_VARS['istats']) )
with
$page = $_GET['page'];
if ( !isset($COOKIE['istats']) )
There may be more.
A thread is for life. Not just for Christmas.