Here are some resources that may help with learning about Windows 7 and troubleshooting:

TechNet - Windows 7: Troubleshooting and Support

Windows 7: A First Look for IT Pros

TechNet Video: Troubleshooting Windows 7 (Level 200)

TechNet Webcast: Windows 7 Feature Overview (Level 200)

TechNet Webcast: A Tour of Windows 7 (Level 100)

TechNet Webcast: Windows 7 Enhanced Security and Control (Level 300)

Several other Windows 7 webcasts