HiWhen you download a layout and it's corresponding session/s with Content Manager, the assets will d/l also. I see on the UMR2014-summer and UMR2013 layout description there issome free content from the site that the author has also used. You will need to go there and d/l them seperately then install them with content manager. Just drag those cdps into the CM window and they will install automatically.' The 2013-Summer' layout is an updated version going by the description and its session is 'UMR-2913-Summerbase Session' - just to give you an idea on what goes with what. I wouldn't worry about d/l the multiplayer layouts and session unless you want to do mp.Here is jointedrail's url and just look for the freeware heading.BHawthorne would be the better one to recommend which route and session to d/l as I do not have them, but they look really great!
Trainz Simulator 12 Download
Trainz Simulator 12 Serial
Oh yeah, if Content Manager's connection with the servers sometimes goes a bit mickey and says you need to validate your username and pw, and you know you haven't changed it and it was working fine previously, just close CM down and re-start it. This may need to be done a couple of times.Edit: Tutorials for trainz here. Build number is given by N3V and is based on when it was done not what level it's patched up to.