Just the one thats what i'm saying. If you have a actual romset and not something cobbled together from all over the internet then you just match the romset to emulator version. So if your romset is the latest 0.226 version then all the games that actually work in MAME will work in the 0.226 version of the emulator, you dont need any other versions.
For those you need the update packs, which are released every month along side the actual fullset, so if you have every singly update pack from when your set is from until now (which would be about 40 update packs and would probably be around the size of a actual full romset at this point then you can do what you want, but im guessing you dont have those and wont be able to find them all) You cant just point it at your cobbled together romset, as i stated in my previous reply, you are missing all sorts of files from inside the zips probably thousands of them at this point, there is no software on earth that can make what you have a correct romset, you need a new one, again, like i said in my previous post.
What you have is NOT a romset, what you have will not work, you need to start from scratch with a correct romset, otherwise you will never get MAME working correctly. Just ditch the rubbish you have that mostly doesnt work, and get a proper romset that does, you have no other choice at this point if you want games to actually work and not just take up space on your HDD for no reason.