Over on the Microsoft website there’s a whole list of webcasts on (applying) Microsoft’s RTC solutions :
Discover how real-time collaboration solutions with Microsoft Office Live Meeting and Microsoft Office Live Communications Server 2005 allow you to bring customers, coworkers, and suppliers closer together and be more productive. Tune in as Microsoft experts present product overviews and strategies for improving productivity and driving down costs. Sessions include technical presentations on configuring, securing, and extending your real-time collaboration infrastructure.
Checkout the list here