That part of soundtrack.net lists the music heard in the trailers for the movies. As to the names of the songs from the actual movies, the best way to find out is to get the soundtrack from the library or buy it used/new and listen to it, because sometimes soundtracks aren't put in chronological order, and some parts of the soundtracks aren't included on CD. Another way is to go to Amazon and go to the page of the soundtrack, and see if it's in one of the samples. Soundtrack reviews might mention what part of the film the music is from, here are some good soundtrack review sites:
www.cinemusic.net
www.filmtracks.com
www.soundtrack.net/reviews
As to soundtracks that you can buy in the store, just go to Amazon and search for soundtracks that you want. If they have it, you might be able to get it at your local Best Buy or record store, but if they don't have it, you probably won't be able to find it anywhere, unless it's out of print, in which case, you might be able to find it used at Amazon Marketplace or at a (used) record store.
The man I loved - the man who vanished - he never came back at all. But maybe he's still out there, somewhere. Maybe some day, when Gotham no longer needs Batman, I'll see him again.
