If you select an Express Install the installation program will walk you through each step of the installation in order. You can also let the Express Install select the series of packages you want to install. For the Mother's Day release, these series are: Base, Emacs, Net Utils, Devel, XFree86, X Utils, and iBCS.
During the Express Install, hitting escape will generally get you to the main RHS Install menu (which you will also get to if you do not choose the Express Install).