In disc one, there is comi.la0 and in disk two there are comi.la0 and comi.la2

Uh Oh. comi.la1 isn't in the first disc. I can find the other two, though

I can find comi.la0 and comi.la2, but not comi.la1, what should I do?

I know I sound like a newb, but I just bought a copy of Curse of Monkey Island, to find that it is not in scummvm's directory. I've read how you have to extract files, but as I am new at this, I do not know how. If someone could tell me exactly how to get COMI to be found on scummvm, I would be very...