Where are all these trains coming from???

[Scratchlight]

I see screenshots of trains like Class 360s, Class 319s, Class 350s and stuff that I have looked up on the DLS and websites and can't find them! I know the Class 170 and 377 etc are payware, but I see no 319 or 360 etc on a payware site!!!

I desperately need a Class 350 for my Liverpool - Crewe line, please someone help!

Thanks, scratchlight