We don't use the installation maker built into the application builder, instead we use a third party tool that is free and gives additional options; like including a license and to split the installation set to fit on floppies. It's called Inno Setup and can be found on: http://www.jrsoftware.org/. It is script-based but also has a nice wizard.
Inno Setup does not give you much room for splash screens though. There are a number of shareware alternatives (not all free as Inno as far as I've seen) that does, if you do a search for installer makers on download.com you'll get a list of them.
