kit.allen on "[Plugin: WooCommerce - excelling eCommerce] Cannot add category images"

Hi folks. I've hit a bit of a snag with WooCommerce (1.6.6, running on WP 3.5.1) where I can't upload category images. Any time I click the 'Upload/Add Image' button - either when adding a new category, or editing an existing one - it just submits the form.

I've disabled all other plugins and switched back to the 2012 theme, but the same problem is occurring. Has anyone else come across this one?

Thanks, Kit

http://wordpress.org/extend/plugins/woocommerce/