The first URL is a repository - you add it to your application manager then you can get the programs in it. The 2nd (gronmayer) is a way to add the repository with a click.

The scripts are a calendar and to-do application, plus he also has a simple database for keeping information in.

I find them nicer than the GPE equivalents - better user interface, nicer to use. But they are 2007 only.

Zebee