When im installing I have to copy all the disk into the harddrive except the first one and during the installion when it ask me for the 4 disc it doesnt intsall it and ask me to put in the first disc and when i do the game works. Is the installion complete or not?

Are you sure it didnt install anything from disk 4? It sounds like a complete installation to me, if the contents on disk 4 wernt copied i'm doubtfull your game would function at all!

 

I dont think theres a problem here to be honest, though i could be wrong i guess.