We are having a slight issue, the plugin is awesome by the way. Just a little issue involving the 3D secure handshake between the site on the customers bank, we are using the latest version of the plugin 0.1.6.6 with woocommerce v. 2.0.10. 3D secure is setup and working on our Sagepay account, however when we went through a batch of live payments on the site, all of them failed, so we got in touch with Sagepay and they picked up that the 3D secure handshake wasn't connecting and failing each purchase attempt. When the purchase failed it was picked up on our Sagepay account and the sites checkout page simply refreshed with no error message.
We saw in a previous thread that you mentioned that the issue has been fixed since version 0.1.6.5? Also you mention that one has to setup rules within the Sagepay 3D security section, any inclination as to what might be needed as a set of rules? and if this could possibly help resolve the issue?
Thanks in advance Steve