Have you installed the latest patch, 1.6.1 and if so did it fix your currency problem?
I'd never heard of this game until a week ago when I stumbled upon DaSquirrelsNuts YouTube channel after looking for some Sim videos, and I was hooked. Bought it and the Going East DLC there and then. Also running TSM (Truck Sim Map) and a few other mods like real physics.
Just built a really cool IR head tracker using a Sony PS3 EyeYou, FaceTrackNoIr, 3 IR LEDs and some other bits and pieces. It's quick, smooth and doesn't hog the CPU. The face tracking wasn't very good.
Just can't get off this game now. Lord knows when I'll play theHunteragain!