For us, the "Members online" link in the dashboard was broken and just showed the site index. For reference, we do not use "full friendly URLs".
I fixed it for us by changing this line in the
andrew_moderatorpanel_dashboard_macros template:
PHP:
<a href="{{ link('online/?type=member') }}">
to:
PHP:
<a href="{{ link('online/&type=member') }}">
No idea if that change works for full friendly URLs.