I just checked online, and under the section for the Sponsor, it says 'Decision Made':
We received your application to sponsor Xenocat on February 12, 2013.
We started processing your application on February 28, 2013.
We sent you a letter on December 30, 2013 about the decision on your application. Please consider delays in mail delivery before contacting us.
...and under the part for me 'Decision Made':
We received Xenocat's application for permanent residence on February 12, 2013.
We started processing Xenocat's application on December 30, 2013.
Medical results have been received.
A decision has been made on Xenocat's application. The office will contact Xenocat concerning this decision.
Is it safe to assume that they've completed both stage 1 and stage 2 approvals?