Rob,
Welcome to the Pronto Addiction.

This will explain the question you have about buttons on the home page.

[Link: remotecentral.com]

There may be other interesting stuff you might want to know in the FAQ as well.

To program this remote, I recommend TouchScreenSetup from the files section or Tonto from [Link: giantlaser.com].

The FAQ has information about Serial to USB converters should you be in the position to not have an RS232 port available on your PC.