Hi Terminator4d
Having done what whisltlehead suggests, you need to issue the commands
Drive to....the name of your station
Load
Your train will then drive to the station, doors will open and passengers on the platform will disappear and re-appear in your train.
This assumes that the coaches have opening doors and are configured for passengers!
Hope this helps.
If you need more guidance just yell (quietly, of course)
Cheers
TD