There are no daft questions.. If you do not know the answer, then it is a valid question..
Yes. Dead easy.. The motor block will have either a 4-way connector, or 4 wires (I know, three if it is really old).. these pull off, and you have four pins.. Ignore the inner two (track pickup), and use the outer two (which connect to the motor)..
To get you going, you can ignore the rest of the wiring in the loco for a start.
Bulbs:
If the end of the bulb is flat, it is 5V. If it is rounded, then 18v or 24V.
Smoke unit:
If it has white and black wires, it is 5V.
But probably ignore both, just to get you going..