Hello freddie,
During an Operations Manager 2007 installation, 40 management packs are imported by default. Of the 40 management packs that are imported during installation, most are libraries. For example, the libraries that you have mentioned:
Health Library, Instance Group Library, Windows Core Library. Libraries are a special type of management pack that are designed to provide a foundation of object types and settings upon with other management packs depend. The management
packs that you want to import to monitor applications, services, and devices in your environment will have dependencies on one more of these libraries.
You can view the list of automatically imported management packs in the Administration pane of the Operations console immediately after installation of Operations Manager 2007 is complete. To view a list of all the imported management packs, click Management
Packs in the Administration pane of the Operations console. The list of imported management packs displays in the Details pane.
The default version of the libraries in Essentials 2007 is 6.0. And in Essentials 2010, it is 6.1. I would assume that the Management Packs are designed for Operations Manager 2007 R2. They may work for Essentials 2010 but not Essentials 2007 SP1.
Thanks,
Yog Li -- Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.