The new track work diagrams for Southern Cross to South Kensington including platforms 15/16 have been published in the Weekly Nuisance some weeks ago .
At Southern Cross the station management are asleep in that there is no signage to indicate to VLP pax how they actually get to platforms 15/16 .
I certainly saw signage to indicate where pl 15/16 is on the Bourke St overpass when I passed through Southern Cross twice today (25/12/2013).
There is signage where the suburban myki gates are, and also at the top of the escalators to the platforms.
Oh, and by the way, contrary to V/Line media hype, the Geelong trains I used did not use pl 15/16 as I was hoping today. The 1031hrs up from Geelong arrived Southern Cross pl 8a, and the 1800hrs down to Geelong departed pl 3a