Check it:

"To help you get up to speed on Vista and Exchange 2007, Microsoft Learning has developed a great opportunity with participating training providers <our Certified Partners for Learning Solutions (CPLS)> on select courses." From now until April 25, 2008, participating CPLS will offer a free copy of Microsoft Office 2007 Enterprise Edition with select Vista courses.  

• Find out which courses, and what countries have participating CPLS (for example, Jordan, Slovenia, and Ghana):
• More Vista offers

And, from now until April 25, 2008 participating CPLS will offer a free copy of Office Communications Server with select Exchange training (see details for wordy disclaimer) 

• Details (did you know that I've never been to Israel, Chile <thanks, Larry>, or Taiwan? Did you know that CPLS in all of these countries, plus many, many others, are participating in this offer?)
• More Exchange offers