I am having the same problem, I can't verify ownership of my OLSB web site.
I have tried with the code
<meta name="msvalidate.01" content="78AD1FA94BA2128458498675C539B6B8" />
and with
%22%20%2F%3E%3Cmeta name=%22msvalidate.01%22 content=%2278AD1FA94BA2128458498675C539B6B8
as suggested on
http://3cloverproject.com/OfficeLiveTutorial.aspx#SEOThere method for Google work a treat & the site is found by several seach criteria but Live Search won't find the code in an OLSB page.
How can I fix this?