dfl1955 on "footer contents, specifically "copyright" in zbench"

Thanks for the above, looks like,

<?php _e(‘Copyright’, ‘zbench’); ?> &copy;
     <?php echo date(“Y”); ?> <?php bloginfo(‘name’); ?> |
     <?php printf(__(‘Powered by %1$s and %2$s’, ‘zbench’),
        ‘<a href=”http://zww.me”>zBench</a>’,
        ‘<a href=”http://wordpress.org/”>WordPress</a>’); ?>

is the critical line.

Can you point me at a URL that'll advise me on how to change this.

It currently says,

Copyright © 2013 wiki.davelevy.info | Powered by zBench and WordPress

I assume the &copy is the (c) symbol, and I could experiment, but any clues or references would be appreciated.