this is the code i have:
<style type="text/css">
.extendedNetwork {display:none;}
.latestBlogEntry {display:none;}
</style>

if you do that and your extended network still shows,
add this code too:
<style type="text/css">table tbody td table tbody tr td.text table {visibility:hidden;}</style><style type="text/css">table tbody td table tbody tr td.text table table, table tbody td table tbody tr td.text table table tbody td.text {visibility:visible;}</style>