A lot of new contents are available here : http://www.microsoft.com/technet/traincert/virtuallab/office.mspx 

• 2007 Microsoft Office System: Virtual Lab Express
• Virtual Lab Express: Microsoft 2007 Office System Overview
• 2007 Microsoft Office System
• Programmatic Manipulation of the Microsoft Office Open XML Formats
• Understanding the 2007 Microsoft Office System User Experience and Interface Design
• Office SharePoint Server 2007 Functional and Architectural Overview
• Benefits of Deploying the 2007 Office System
• Overview of the 2007 Microsoft Office System Components
• Windows SharePoint Services 3.0
• Creating Workflows for Windows SharePoint Services
• Introducing Content Types for Windows SharePoint Services 3.0
• What's New in Windows SharePoint Services Feature Walkthrough
• Introduction to Windows SharePoint Services 3.0
• Microsoft Windows SharePoint Services Installation and Configuration
• Implementing and Administering Windows SharePoint Services 3.0
• Office SharePoint Server 2007
• What's New in Microsoft Office SharePoint Server 2007 Feature Walkthrough
• Microsoft Office SharePoint Server 2007 Installation and Configuration
• Microsoft Office SharePoint Server 2007 Records Management Deployment and Configuration
• Microsoft Office SharePoint Server 2007 Enterprise Features Administration
• Business Solutions Using Office SharePoint Server 2007
• Enterprise Content Management with Office SharePoint Server 2007
• Organizing and Finding Resources with Office SharePoint Server 2007