If you have been using puppy linux for a while you should be familiar with the 2 main ways of installing puppy full and frugal click here. The recommended way that puppy is designed to run at its best is frugal install.
Basic Options: There are some options with the frugal install. these options can be found if you press f1 when booting from the puppy live cd. there is a good explanation for them click here and click here
Advanced Options: (behind the scene, options when running puppy). There are several other ways you can run a puppy frugal install, called the PUPMODEs. There is some good information about the different PUPMIODES click here. What pupmode you need depends on the computer specks., how you intend to run puppy and what you want to achieve. Take a look and see what is the best option for you.