What are the steps to place files in a folder on Mac OS using a Xcode build?

New to Xcode so I though I'd ask here... I'm looking to learn how to take an existing group of files and use Xcode to build an installer that just drops that payload into a specific directory on the Mac OS file system when installed from the App store.


I've accomplished this sort of thing before with the use of DMG files but would like to make this installation possible from the App store for the sake of future simplicity and scaleability.


I found this abandoned article here:http://preserve.mactech.com/articles/mactech/Vol.25/25.06/InstallerPlugins/index.html ...and if the example project still existed on the ftp server it would probably sufficiently explain the process.


I'd greatly appreciate it if someone could explain how to attach payload files to an installer plug-in or could point me in the right direction!


Thanks in advance,

Josh