bow and arrow

I get all the gun scripts and understand somewhat what is going on in most of the free ones. The one thing i cant understand it how to rez an object and make it fly the correct way. All the things i have tried to do this with have rezzed sideways and after looking through the free scripts and looking up the rezobjects and getrot and rez2forward i am lost. could anyone please explain if it has to do with the parent prim of the arrow or the rotation when i add it to the bow. I have triued all i can but i am still reading as we speak