Removing powered by Phpfox

Go to edit template.html.php
path :
phpfox\theme\frontend\default\template\template.ht ml.php

line no 132 or more

Before:
<div id="copyright">
{branding}
</div>

Remove {branding} and add your link

After :

<div id="copyright">
<a href="">your site</a>
</div>