I have downloaded the mike dunnings Hamilton Square To Rock Ferry And Also West Kirby To Liverpool Central and its not really showing up in my quick drive scenario in train simulator classic
I think he has a facebook page - you'd have to ask him - but it might be that there is no quick drives - it's easy enough to swap out the stock for the 507 or 508 using the editor.
You just start up the same as the 313 or 315, shift and f I think and you should get the AWS ping, set it to forward and release the brakes...slightly odd to drive, but you get used to it.
You need to contact Armstrong Powerhouse - I only drive them - if you're doing quick drive, just make sure it's on an electric route (maybe reinstall if it isn't loading up for you).