Install this plugin:http://mybbhacks.zingaburga.com/showthread.php?tid=260
ACP>>Templates & Style>>Templates>>CHOOSE THEME>> INDEX>>index_boardstats
add the at the beginning
and this at the end
ACP>>Templates & Style>>Templates>>CHOOSE THEME>> INDEX>>index_boardstats
add the at the beginning
<if $mybb->user['usergroup'] != 1 then>and this at the end
</if>