Ben Huson

This plugin displays cross sales in WP e-Commerce. It provides the same functionality as in earlier versions of WP e-Commerce plus a little bit more.
Doesn’t do anything yet but will replace the current WP e-Commerce ‘also bought’ functionality in version 3.9+
New features include:
<ul>
<li>Option to set cross sale image sizes.</li>
<li>Remove hardcoded styling so it’s easier to style via css.</li>
<li>Improved code structure.</li>
</ul>
PS: You’ll obviously need WP e-Commerce installed for this to do anything 😉

WP e-Commerce Cross Sales (Also Bought)

This plugin displays cross sales in WP e-Commerce. It provides the same functionality as in earlier versions of WP e-Commerce plus a little bit more.

flentini

Checks how many products added to a WPeC Cart are actually purchased and stores informations in the database. 
It’s in very early stage and maybe a bit messy, in particular the ghart.php that outputs js, so if you find 
anything wrong let me know 🙂
Even if you remove the plugin data remain in the DB so remember to delete the *_cart_analytics table too!
<ul>
<li>Tested with WordPress 3.3.1 and WP e-Commerce 3.8.7.6.2</li>
<li>Uses Google Chart Tools for charts</li>
<li>icons by famfamfam.com</li>
</ul>

Cart Analytics for WP e-Commerce

Checks how many products added to a WPeC Cart are actually purchased and stores informations in the database.

WP e-Commerce Cross Sales (Also Bought) vs Cart Analytics for WP e-Commerce