This is for OS 9 only, and for people who boot OS 9. This provides the same firmware updates as the separate LaCie Update Tool 1.3.2 for OS X. If OS X is your primary OS, you do not need Silverlining.
If your primary OS is OS 9, then we strongly recommend upgrading your OS to Mac OS 9.2.2. This version of OS 9 is the last one released by Apple, and is required when you need ability to boot OS 9 and OS X.
This updater requires a previously installed copy of Silverlining and that you are booted into OS