Help needed in getting these going

As you all know i'm crap at getting roms working, well some of the harder ones lol.

is there anyone that can help me set em up please

the roms in question are

 classic spotted dick £15 epoch it asks for a game key but whatever i put in it, it still errors sometimes crashing mfme!!

 Bfm's Flashcash £10/25p (flashback clone) this works in door open mode after it asks for the stake/prize settings but can,t seam to get it in door closed mode, also there appears to be a sound rom missing as only the nudge and collect sounds work.

Gopher's Gold empire £25 again i'm pants at setting the CHR pic code up so alarm 51 errors

all help is greatly appreciated if successful then its three new games to play

 thanks in advance vectra666