I'm still a bit confused as to how to work this whole ScummVM thing, and the faqs kinda dont help me. Some1 willing to help me out?

I've downloaded Sam and Max Hit The Road from a site and i've been trying to added it to my games library but i'm having trouble. The file's name is Sam & Max- ScummVM(Full Speech). It says that it's a WinRAR Archive. i put it into the folder for ScummVM and tried to add it to the library, but i...