How do I copy a game the hard way???

[WhatWhat]

I have always made 1:1 backup copies and thats about all I know. But there are games now that need more complicated settings and stuff and I have heard that something of a patch always works. I have also heard that with alcoholer you get the image file and then u do something with twincreator (included in alcoholer). But after this I have no idea what to do.

Can someone be kind enough to explain what I do after making a succesful image???