well basically ever one of those icons has a name, just keep the mouse cursor over it and itll tell you. What I like to do is save them on my comp in their own folder.
:icon <--you have to put this with basically everything.
:icon ahurr plz: <---and plz usually as well.
some icons wont have that, youll know or not since most icons already show the, plz or so with it.
But make sure you put everything together.
:icon ahurr plz:
NO SPACES!