Here is a list of courses that you can use the Microsoft Software Assurance Voucher for (as of May 2008):

2008 Designing and Planning a Microsoft® Exchange Server 2003 Organization
2009 Upgrading Your Skills from Microsoft® Exchange Server 5.5 to Microsoft Exchange Server 2003
2011 Troubleshooting Microsoft® Exchange Server 2003
2014 Customizing Microsoft® SharePoint™ Products and Technologies 2003
2015 Enabling Business Processes using XML, Smart Documents and Smart Client Solutions within the Microsoft® Office System 2003
2016 Bringing Data into Desktop Programs using the Microsoft® Office System 2003 Editions Research and Reference Technologies
2030 Creating Reporting Solutions Using Microsoft® SQL Server™ 2000 Reporting Services
2052 Using Visual Studio® for Office Tools
2073 Programming a Microsoft® SQL Server™ 2000 Database
2081 Deploying Microsoft® Office Live Communications Server 2003
2123 Upgrading from Microsoft® Windows NT® 4.0 to Windows Server™ 2003
2157 Developing E-Business Solutions Using Microsoft® BizTalk® Server 2004
2158 Deploying and Managing E-Business Solutions using Microsoft® BizTalk® Server 2004
2199 Jumpstart: Active Directory® Fundamentals
2207 Expert Track: Updating Systems Administrator and Systems Engineer Skills from Microsoft® Windows® 2000 to Windows Server™ 2003
2208 Updating Support Skills from Microsoft® Windows NT® 4.0 to Windows Server™ 2003
2209 Expert Track: Updating Systems Administrator Skills from Microsoft® Windows® 2000 to Windows Server™ 2003
2210 Expert Track: Updating Systems Engineer Skills from Microsoft® Windows® 2000 to Windows Server™ 2003
2215 Implementing and Managing a Windows® Powered Network Attached Storage (NAS) Device
2261 Supporting Users Running the Microsoft® Windows® XP Operating System
2262 Supporting Users Running Applications on a Microsoft® Windows® XP Operating System
2263 Exam Preparation for the MCDST Certification
2272 Implementing and Supporting Microsoft® Windows® XP Professional
2273 Managing and Maintaining a Microsoft® Windows Server™ 2003 Environment
2273 Managing and Maintaining a Microsoft Windows Server 2003 Environment
2274 Managing a Microsoft® Windows Server™ 2003 Environment
2274 Managing a Microsoft Windows Server 2003 Environment
2275 Maintaining a Microsoft® Windows Server™ 2003 Environment
2275 Maintaining a Microsoft Windows Server 2003 Environment
2276 Implementing a Microsoft® Windows Server™ 2003 Network Infrastructure: Network Hosts
2277 Implementing, Managing, and Maintaining a Microsoft® Windows Server™ 2003 Network Infrastructure: Network Services
2282 Designing a Microsoft® Windows Server™ 2003 Network and Active Directory® Infrastructure
2283 Migrating from Microsoft® Windows NT® 4.0 to Microsoft Windows Server™ 2003
2285 Installing, Configuring and Administering Microsoft® Windows® XP Professional
2287 Managing Your Infrastructure Using Microsoft® Operations Manager 2005
2289 Deploying Business Desktops with Microsoft® Windows® XP and Microsoft® Microsoft Office 2003
2297 Updating SE Skills from Windows® 2000 to Windows Server™ 2003
2299 Managing and Maintaining a Microsoft® Windows® Server™ 2003 Environment for an MCSA on Windows 2000
2310 Developing Web Applications Using Microsoft Visual Studio 2008
2311 Advanced Web Application Development using Microsoft® ASP.NET
2362 Deploying Microsoft® .NET Applications for Systems Engineers
2363 Getting Started with Microsoft® .NET for COBOL Programmers
2364 What's New in Microsoft® Visual Studio® 2005 for Existing Visual Studio .NET Developers
2365 Designing an Application Migration Strategy to Microsoft® .NET
2366 Developing High Performance and Scalable Web Applications Using ASP.NET 1.1 and ADO.NET 1.1
2395 Designing, Deploying, and Managing a Network Solution for the Small and Medium-sized Business
2400 Implementing and Managing Microsoft® Exchange Server 2003
2433 Microsoft® Visual Basic® Scripting Edition and Microsoft® Windows® Script Host Essentials
2526 Developing Distributed Applications with Microsoft® .NET Remoting
2541 Core Data Access with Microsoft® Visual Studio® 2005
2542 Advanced Data Access with Microsoft® Visual Studio® 2005
2543 Core Web Application Technologies with Microsoft® Visual Studio® 2005
2544 Advanced Web Application Technologies with Microsoft® Visual Studio® 2005
2546 Core Windows® Forms Technologies with Microsoft® Visual Studio® 2005
2547 Advanced Windows® Forms Technologies with Microsoft® Visual Studio® 2005
2548 Core Distributed Application Development with Microsoft® Visual Studio® 2005
2549 Advanced Distributed Application Development with Microsoft® Visual Studio® 2005
2552 Administering Microsoft® Windows® SharePoint® Services
2553 Administering Microsoft® SharePoint® Portal Server 2003
2554 Administering Microsoft® Windows® SharePoint® Services and SharePoint Portal Server 2003
2562 Getting Started with Microsoft® Visual Studio® 2005 for Visual Basic® 6.0 Developers
2576 Implementing and Administering Microsoft® Internet Information Services (IIS) 6.0
2596 Deploying and Managing Microsoft® Systems Management Server 2002
2597 Planning and Deploying Microsoft® Systems Management Server 2003
2631 Optimizing the Software Development Lifecycle with Microsoft® Visual Studio® Team System
2694 Updating Web Server Skills to Internet Information Services 6.0
2717 Introduction to Microsoft® .NET Development
2731 Deploying and Managing Microsoft® Identity Integration Server 2003
2732 Planning, Deploying, and Managing an Enterprise Project Management Solution
2779 Implementing a Microsoft® SQL Server™ 2005 Database
2780 Maintaining a Microsoft® SQL Server™ 2005 Database
2781 Designing Microsoft® SQL Server™ 2005 Server-Side Solutions
2782 Designing Microsoft® SQL Server™ 2005 Databases
2783 Designing the Data Tier for Microsoft® SQL Server™ 2005
2784 Tuning and Optimizing Queries Using Microsoft® SQL Server™ 2005
2785 Implementing and Maintaining a Microsoft® SQL Server™ 2005 Database
2786 Designing a Microsoft® SQL Server™ 2005 Infrastructure
2788 Designing High Availability Database Solutions Using Microsoft® SQL Server™ 2005
2789 Administering and Automating Microsoft® SQL Server¬™ 2005 Databases and Servers
2790 Troubleshooting and Optimizing Database Servers Using Microsoft® SQL Server¬™ 2005
2791 Implementing and Maintaining Microsoft® SQL Server™ 2005 Analysis Services
2792 Implementing and Maintaining Microsoft® SQL Server™ 2005 Integration Services
2793 Implementing and Maintaining Microsoft® SQL Server™ 2005 Reporting Services
2794 Designing a Business Intelligence Solution for the Enterprise Using Microsoft® SQL Server™ 2005
2795 Designing an ETL Solution Architecture Using Microsoft® SQL Server™ 2005 Integration Services
2796 Designing an Analysis Solution Architecture Using Microsoft® SQL Server™ 2005 Analysis Services
2797 Designing a Reporting Solution Architecture Using Microsoft® SQL Server™ 2005 Reporting Services
2801 Microsoft® Security Guidance Training I
2802 Microsoft® Security Guidance Training II
2803 Microsoft® Security Guidance Training III
2804 Microsoft® Security Guidance Training IV
2806 Microsoft® Security Guidance Training for Developers
2807 Microsoft® Security Guidance Training for Developers II
2808 Microsoft® Security Guidance Training V
2811 Applying Microsoft® Security Guidance
2820 Implementing and Administering Security in a Microsoft® Windows® 2000 Network
2821 Deploying and Managing a Public Key Infrastructure
2823 Implementing and Administering Security in a Microsoft® Windows Server™ 2003 Network
2824 Implementing Microsoft Internet Security and Acceleration Server 2004
2827 Deploying Microsoft® Windows® Rights Management Services
2830 Designing Security for Microsoft® Networks
2840 Implementing Security for Applications
2851 Deploying and Administering Windows® XP Service Pack 2
2853 Developing and Maintaining Applications on Windows® XP Service Pack 2
2855 Managing Security Enhancements in Windows Server™ 2003 Service Pack 1
2933 Developing Business Process and Integration Solutions Using Microsoft® BizTalk® Server 2006
2934 Deploying and Managing Business Process and Integration Solutions Using Microsoft® BizTalk® Server 2006
2956 Core Foundations of Microsoft® .NET 2.0 Development
2957 Advanced Foundations of Microsoft® .NET 2.0 Development
3938 Updating Your Skills from Microsoft® Exchange 2000 Server or Microsoft Exchange Server 2003 to Microsoft Exchange Server 2007
4356 Managing Branch Office Resources Using Microsoft® Windows Server™ 2003 R2
4357 Managing Data Storage Using Microsoft® Windows Server™ 2003 R2
4358 Deploying and Managing Active Directory® Federation Services in Microsoft® Windows Server™ 2003 R2
4360 Getting Started with Microsoft® Windows Server™ 2003 R2
4994 Introduction to Programming Microsoft® .NET Applications with Microsoft Visual Studio® 2005
4994 Introduction to Programming Microsoft® .NET Applications with Microsoft Visual Studio® 2005
4995 Programming with the Microsoft® .NET Framework using Microsoft Visual Studio® 2005
4995 Programming with the Microsoft® .NET Framework using Microsoft Visual Studio® 2005
5047 Introduction to Installing and Managing Microsoft® Exchange Server 2007
5049 Managing Messaging Security Using Microsoft® Exchange Server 2007
5050 Recovering Messaging Servers and Databases Using Microsoft® Exchange Server 2007
5051 Monitoring and Troubleshooting Microsoft® Exchange Server 2007
5053 Designing a Messaging Infrastructure Using Microsoft Exchange Server 2007
5054 Designing a High Availability Messaging Solution Using Microsoft Exchange Server 2007
5058 Deploying Microsoft® Office Professional Plus 2007
5060 Implementing Microsoft Windows SharePoint Services 3.0
5061 Implementing Microsoft® Office SharePoint® Server 2007
5105 Deploying Windows Vista™ Business Desktops
5115 Installing and Configuring the Windows Vista Operating System
5115 Installing and Configuring the Windows Vista Operating System – MODL
5116 Configuring Windows Vista Mobile Computing and Applications
5116 Configuring Windows Vista Mobile Computing and Applications – MODL
5118 Maintaining and Troubleshooting Windows Vista Computers
5118 Maintaining and Troubleshooting Windows Vista Computers – MODL
5119 Supporting the Microsoft Windows Vista Operating System and Applications
5119 Supporting the Microsoft Windows Vista Operating System and Applications – MODL
5131 Preparing for MCP Exam 70-282, Designing, Deploying, and Managing a Network Solution for a Small- and Medium-Sized Business
5177 Implementing and Maintaining Instant Messaging Using Microsoft Office Communications Server 2007
5178 Implementing and Maintaining Audio/Visual Conferencing and Web Conferencing Using Microsoft Office Communications Server 2007
5928 Managing Projects
6066 Developing Managed Applications for Microsoft Windows Mobile 6
6067 Developing Native Applications for Microsoft Windows Mobile 6
6415 Updating your Network Infrastructure Technology Skills to Windows Server® 2008 (Beta 3)
6416 Updating your Active Directory® Technology Skills to Windows Server® 2008 (Beta 3)
6417 Updating your Application Platform Technology Skills to Windows Server® 2008 (Beta 3)
6418 Deploying Windows Server® 2008 (Beta 3)
6451 Planning, Deploying and Managing Microsoft® System Center Configuration Manager 2007
6462 Visual Studio® 2008: Windows® Workflow Foundation
7031 Upgrading to Microsoft® SQL Server™ 2005
7033 Microsoft® SQL Server™ 2005 for the Experienced Oracle Database Administrator
7034 Implementing Microsoft Office Live Communications Server 2005 (SP1)
8521 Microsoft® CRM 3.0 Sales Management
8522 Microsoft® CRM 3.0 Marketing Automation
8523 Microsoft® CRM 3.0 Service Management
8524 Microsoft® CRM 3.0 Service Scheduling
8525 Microsoft® CRM 3.0 Customization
8526 Microsoft® CRM 3.0 Installation and Configuration
8529 Microsoft® CRM 3.0 Administration
8530 Microsoft® CRM 3.0 Data Migration
8531 Extending Microsoft® CRM 3.0