If you were to purchase the ARS software, I believe the rule book is contained in the help files.
What you can do on the Palm OS is convert the files to text and use a converter to change the text files into a "doc" format file. You can then put the doc file on your Palm and use a free doc reader for the Palm to read it.
You can find convertors and doc readers on any of the handheld web sites like Handango and Palm Gear.
Now for a plug of my software, if you want to keep your assignments on your Palm then I offer Assignment Secretary for the Palm OS. Go to
http://www.officialssoftware.com.