DIS DUN GAME GUN GOT ME ADICTUD.
This is a game about wheels. Wheels, and terrain. And gearboxes. It's bloody good fun to get into, especially when you flip your truck.
What you do:
1-6: Look at controls, look at picture for explanation. Start out with a KAMAZ. Drive into Garage area, click enter. Install platform. You can now carry cargo.
7-11: Open map with F1, find next bit of cargo to pick up and the warehouse to deliver at. Drive there. Fumble with gears like an idiot.
12: Roll over/get stuck/derp
13: Open map with F1, "evacuate truck", try again.
Never restart proper -- the game saves so you can always go to the main menu and continue.