For the second one go to:
Admin CP > Templates & Styles > Templates > YOUR THEME > Index Page Templates > index
and find & remove:
<dl class="forum_legend smalltext">
<dt><img src="{$theme['imgdir']}/on.png" alt="{$lang->new_posts}" title="{$lang->new_posts}" style="vertical-align: middle; padding-bottom: 4px;" /></dt>
<dd>{$lang->new_posts}</dd>
<dt><img src="{$theme['imgdir']}/off.png" alt="{$lang->no_new_posts}" title="{$lang->no_new_posts}" style="vertical-align: middle; padding-bottom: 4px;" /></dt>
<dd>{$lang->no_new_posts}</dd>
<dt><img src="{$theme['imgdir']}/offlock.png" alt="{$lang->forum_locked}" title="{$lang->forum_locked}" style="vertical-align: middle;" /></dt>
<dd>{$lang->forum_locked}</dd>
</dl>
for the first you have to play with some css!