I Think I got it now :-)
I turned out that the new release has something called simulationxpress, wich is not the same as simulation and does not handle surface models.
The real Simulation was disabled and had to be enabled under tools - add-ins, then the study was available.
Sometimes the answer is simpler than the question :-)
I hope that other users will find this post helpfull.
SolidWorks 2013 did have SimulationXpress as well. You can have Simulations addins load with SolidWorks automatically by going to:
Tools -> Add-Ins...