Better use firebug
for firefox or any other dev tool for other browser to see what html tag with a name and id attributes displays it
And then create a css that would hide it like
.title_and_date{
display:none;
}
or if you want this to be done backend of wp find
<?php the_author() ?>
<?php the_time('F j, Y'); ?>
because thats makes you post the author and date
try to add this in your css i check your link and see which html tags it falls
footer.entry-meta{
display:none;
}