TruckersMP does not support the latest game version of American Truck Simulator and Euro Truck Simulator 2 yet.
Check out the following guide on how to downgrade so you can continue playing on multiplayer: How to downgrade
We don't have many requirements. The most important of them is to make nice trucks with the style of Holland / Norwegian / Danish etc. We currently use two billing systems, these are VTLOG and Trucksbook. The driver therefore has a choice, he can drive which he wants, or on both.