[Lynne]

OK, well to do it the template way... open up the template whosonlinebit and find this:

    <td class="alt2" width="35%">
        <div>
            <span style="float:$stylevar[right]">
                <if condition="$show['lockedout']"><img src="$stylevar[imgdir_statusicon]/wol_lockedout.gif" alt="$vbphrase[viewing_forum_closed]" /></if>
                <if condition="$show['nopermission']"><img src="$stylevar[imgdir_statusicon]/wol_nopermission.gif" alt="$vbphrase[viewing_no_permission_message]" /></if>
                <if condition="$show['errormessage']"><img src="$stylevar[imgdir_statusicon]/wol_error.gif" alt="$vbphrase[viewing_error_message]" /></if>
                <if condition="$show['reallocation']"><img src="$stylevar[imgdir_misc]/question_icon.gif" alt="$userinfo[location]" /></if>
            </span>
            $userinfo[action]
        </div>
        <if condition="$show['where']">
            <div class="smallfont" style="margin-top:1px">
                <if condition="$show['subscribed']"><img class="inlineimg" src="$stylevar[imgdir_misc]/subscribed.gif" alt="$vbphrase[you_are_subscribed_to_this_thread]" /></if>
                $userinfo[where]
            </div>
        </if>
    </td>

To disallow registered users and guests from seeing that and just put 'nothing' in that spot, change it to this:

    <td class="alt2" width="35%">
<if condition="$show['member'] AND !is_member_of($bbuserinfo, 2)">
        <div>
            <span style="float:$stylevar[right]">
                <if condition="$show['lockedout']"><img src="$stylevar[imgdir_statusicon]/wol_lockedout.gif" alt="$vbphrase[viewing_forum_closed]" /></if>
                <if condition="$show['nopermission']"><img src="$stylevar[imgdir_statusicon]/wol_nopermission.gif" alt="$vbphrase[viewing_no_permission_message]" /></if>
                <if condition="$show['errormessage']"><img src="$stylevar[imgdir_statusicon]/wol_error.gif" alt="$vbphrase[viewing_error_message]" /></if>
                <if condition="$show['reallocation']"><img src="$stylevar[imgdir_misc]/question_icon.gif" alt="$userinfo[location]" /></if>
            </span>
            $userinfo[action]
        </div>
        <if condition="$show['where']">
            <div class="smallfont" style="margin-top:1px">
                <if condition="$show['subscribed']"><img class="inlineimg" src="$stylevar[imgdir_misc]/subscribed.gif" alt="$vbphrase[you_are_subscribed_to_this_thread]" /></if>
                $userinfo[where]
            </div>
        </if>
<else />
&nbsp;
</if>
    </td>

You could also do it by plugin if you don't want to edit templates (just set those two variables to nothing if a member of usergroup 2).