FORUMHOME look for
HTML Code:
<if condition="$show['loggedinusers']">
and above it put
HTML Code:
<div class="smallfont">
<div style="white-space: nowrap"><phrase 1="$recordusers" 2="$recorddate" 3="$recordtime">$vbphrase[most_users_ever_online_was_x_y_at_z]</phrase></div>
Now turn off who can view who's online in usergroup permissions and you should get the desired effect