itthinx

This plugin integrates <a href="http://www.itthinx.com/plugins/affiliates/" rel="nofollow ugc">Affiliates</a>, <a href="http://www.itthinx.com/plugins/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> and <a href="http://www.itthinx.com/plugins/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a> with <a href="https://wordpress.org/extend/plugins/wp-e-commerce" rel="ugc">WP e-Commerce</a>.
With this integration plugin, referrals are created automatically for your affiliates when sales are made.
The plugin allows you to set a referral (commission) rate so that your affiliates get credited with a referral based on a percentage of each sale’s total net amount.
Requirements:
<ul>
<li><a href="https://wordpress.org/plugins/affiliates" rel="ugc">Affiliates</a>, <a href="http://www.itthinx.com/plugins/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> or <a href="http://www.itthinx.com/plugins/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a></li>
<li><a href="http://www.itthinx.com/plugins/affiliates-wp-e-commerce" rel="nofollow ugc">Affiliates WP e-Commerce Integration</a> (this plugin)</li>
<li><a href="https://wordpress.org/plugins/wp-e-commerce" rel="ugc">WP e-Commerce</a></li>
</ul>
Install these, set up your shop, decide how much you want to pay your affiliates and start selling!
Feedback is welcome! 
If you need help, have problems, want to leave feedback or want to provide constructive criticism, you can leave a comment here at the <a href="http://www.itthinx.com/plugins/affiliates-wp-e-commerce" rel="nofollow ugc">plugin page</a>.
Please try to solve problems there before you rate this plugin or say it doesn’t work. There goes a lot of work into providing you with free quality plugins! Please appreciate that and help with your feedback. Thanks!
You are welcome to <a href="http://twitter.com/itthinx" rel="nofollow ugc">follow @itthinx on Twitter</a> for updates on this and related plugins.

Affiliates WP e-Commerce Integration

This integrates the Affiliates plugins with the WP e-Commerce shopping cart.

Freemius

olegabr

Allow your affiliates to create posts and pages on your site. Then if customer visits your site starting from these pages it will be counted as if they came by an affiliation link of the corresponding page author.
<ul>
<li>Dramatically improve your site’s search position.</li>
<li>Make your site a central point of marketing materials, guides and articles for your store.</li>
</ul>
<h4>Free Features</h4>
The <a href="https://wordpress.org/plugins/affiliates-manager/" rel="ugc">Affiliates Manager</a> plugin is supported out of the box.
<h4>PRO Features</h4>
The <a href="https://wordpress.org/plugins/yith-woocommerce-affiliates/" rel="ugc">YITH WooCommerce Affiliates</a> plugin is supported out of the box.

Guest Author Affiliate

Allows your site's content authors to become your affiliates.

Affiliates WP e-Commerce Integration vs Guest Author Affiliate