These are EXPERIMENTAL! They probably won't work at all for you! Use at your own risk! Many of these have *never* been successfully built on any platform! (But still, if you can figure out how to build them, I'd like to know about it.) These also may not be available under a GPL-compatible license.
To install one of these packages, type e.g., the following at the UNIX shell prompt:
sage -i db-jones-2005-11-02
Note that the package name contains the version number, and it will be downloaded automatically if necessary.