mt-Order with date headers/footers if mt:orderitem supported OrderDateHeader and Footer tags that it doesn't

gistfile1.html

<mt:Order>

    <mt:OrderHeader>
        <div class="site-activity">
    </mt:OrderHeader>

    <mt:OrderDateHeader>
        <h2><mt:Date format="%a, %d %b %Y"></h2>
        <div id="datebox">
    </mt:OrderDateHeader>

    <mt:OrderDateFooter>
        </div>
    </mt:OrderDateFooter>

    <mt:Entries>

        <mt:OrderItem>
            <!-- note the dates are NOT in utc -->
            <mt:setvarblock name="order_by">
                <mt:EntryDate utc="0" format="%Y-%m-%d %H:%M:%S">
            </mt:setvarblock>

            <!-- your blog entry code -->
        </mt:OrderItem>

    </mt:Entries>

    <mt:StreamActions>  <!-- with yr selection options -->

        <mt:OrderItem>
            <!-- this timestamp should convert to the current blog's
                 local time, but you should check that it does -->
            <mt:setvarblock name="order_by">
                <mt:StreamActionDate utc="0" format="%Y-%m-%d %H:%M:%S">
            </mt:setvarblock>

            <!-- your stream action code -->
        </mt:OrderItem>

    </mt:StreamActions>

    <mt:OrderFooter>
        </div>
    </mt:OrderFooter>

</mt:Order>