Thank you for your post.
Launch the file "bps_Main_Menu.fp7". In the upper right corner, click on the "?" icon, and that will give you a good overview of the Business Productivity Solution. There is a section "Tiips for customizing the Business Productivity Solution" that you may find helpful.
If this still doesn't help, let us know what you are trying to accomplish, and what difficulty you are having trying to set it up. This will make other users more likely to help.