My reasons for making the Windows Live Essentials 2009 Offline Installer available for download differ froms yours, but you can get it from my website: Mede8er Login Problems
It's is a legit version, if you're concerned about that. It's just that Microsoft no longer has the 2009 version available for download. I guess I'm lucky that I got the offline installer when I did.
Personally, I'm just waiting for the network issues on the Mede8er to get resolved before I upgrade to windows Live Essential 2011.