where can I find 3-D presets compositions to make wedding albums with video, pics, audio? and to make other kinds of 3-D albums?
You're not talkin' presets, you're talkin' templates. Google "After Effects Templates" and you'll find a boatload. Some are even free... not the really cool ones, of course.
But they won't do you any good until you know the stuff in here:
No kidding on this. AE is fun, but it's deceptive -- it looks easy, but there are more ways to hose yourself and cause frustration than any other application I know.