The problem with it is the faulty engine spec for TS12. Also,bad news. My TS2009 and TS2010 refuse to work anymore so Frisco will only be availible to those who run Service Pack 1 Hotfix 4 in Trainz 12 and it will work for Mac. I got a beta tester for that anyway.
Have you figured out why? I run TS2010 and will not be going to the SP1 update unless proven that it is a stable game. And even so, i would still download this engine regardless of build version required. Atm i am holding off on Trainz till i can build a custom desktop for gaming.