kawa-x

i hav a problem with kawa-x.i hav 3 installed on my xbox.kawa-x.kawa-x-plus & kawa-x (for new games).this is wot it says on my games list.all seem to be v.11.but i hav all cps1 & 2 roms & neo geo in kawa-x.but metal slug 4 in kawa-x plus with kof2002 & metal slug 5 in kawa-x for new games.when i move them into same rom folder metal slug 5 shows up in kawa-x but not metal slug 4 or kof2002.can ne1 please help me cause i want to run all roms from the same emu but i don't understand y they work on different formats metal slug 5 has(predecrypted) in list but metal slug 4 doesn't but it works in kawa-x-plus.also when i move roms to kawa-x plus they all show up except kof2001.hope some1 can help.thanks in advance regards nico.