Beware of this plugin. The authors won't say it in the wordpress official plugin page, but after a while you are using it it will add a link in your blogroll to their website. I did not realize this at first, but my customers did and it had a really BAD impact on my site's image.
Boo-hoo to wordpresssuplies.com I ask all their plugins get removed from wordpress.org/extend
To remove the malicious code just go to the plugin file and delete these lines:
// Please do not delete this link to support the plugin global $wpdb; if($wpdb->get_var("SELECT COUNT(link_id) FROM $wpdb->links WHERE link_url='http://wordpresssupplies.com/'")==0) wp_insert_link(array('link_name' => 'WordPress Themes', 'link_url' => 'http://wordpresssupplies.com/', 'link_description' => 'Download Free WordPress Themes and Plugins' ));
It is so sad and a shame to find this kind of people in a nice open source community like this.
An advice to the authors: ask for donations or backlinks, do not do it the sneaky way. I will not download a single bit of code signed by you from now on. Think about this.