The Live meeting add in pack has been released to the web. Here’s the info from the download page...
The Live Meeting Add-In Pack consists of three distinct add-ins: the Live Meeting Add-in for Outlook, the Office Collaboration Add-in, and the Live Meeting add-in for Instant Messaging, each which offer unique features.
Live Meeting Add-in for Outlook
With the Live Meeting Add-in for Outlook, you can:
Schedule a Live Meeting from Outlook
Identify individual meeting participants as attendees or presenters
Send separate invitations for attendees and for presenters
Specify default meeting options and override those defaults for specific meetings
Live Meeting Add-in for Office Collaboration
With the Office Collaboration Add-in, you can start a Meet Now meeting directly from Word, Excel, PowerPoint, Visio, or Project. The document appears in an application sharing session.
Live Meeting Add-in for Instant Messaging
If the recipient also has the Live Meeting Add-in Pack installed, you can start a Live Meeting from Windows Messenger or from MSN Messenger.