I made a somewhat vague picture of the ground plan. I will use the numbers of the rooms on this plan to help you navigate. The central church has 4 (central part) and 5 (apse), the narthex (first part in front of church) is 3, in its' front the is 2 which I pressume to be the exo-narthex mentioned in the previous picture's caption.

I found interesting articles about the restoration works at 2007 works and 2008 works.