Hallo,
also das ist ein richtiger Wurschtelcode. Ich würde das so machen:
$qry = "SELECT bid, autor, content,thema, stamp FROM blog_index";
if (($res = mysql_query($qry)) && mysql_num_rows($res))
{
while ($row = mysql_fetch_object($res))
{
$bid = $row->bid;
$autor = $row->autor;
$thema = $row->thema;
$content = $row->content;
$datum = date("d.M.Y",$row->stamp);
$uhrzeit = date("H:i",$row->stamp);
echo"<h1>$thema <span>$autor  |   $datum   $uhrzeit</span></h1>";
echo nl2br ("<p>$content</p>");
echo"<p><a href="content_comment.php?bid=$bid">Kommentar</a></p>";
$qry = "SELECT COUNT(bid) FROM blog_comment WHERE bid = '$bid'";
if (($resC = mysql_query($qry)) && mysql_num_rows($resC) && ($rowC = mysql_fetch_object($resC)))
echo $row;
} // end while
} // end if