ActionScript 3.0 :: Importing External .as Files Without Binding Them?

I initiated a project. I put the external .as files into the appropriate folders, labeled the packages, bind them to their related library objects and so on. Everything is working fine..

Now, what I have here is another .as file that is performing an algorithm, and thus, not directly related to a library object. I put it in a folder, named its package accordingly, and imported it in my main .fla, like all the others. BUT I don't bind it (it's called binding right?) to a library object. So, when I call the class, it simply gives "Type was not found" error.. can't I call an external .as file WITHOUT binding it to an object. Or should I just made up an empty MovieClip and bind the file to it? It just not seems right to me..