@Hotfix, @Michael
First of all thanks to Jeff from the community for his contributions. At this time, we do not have any plans for shipping Update rollups for Exchange 2007 SP1 for non-critical issues. We would like to encourage customers to upgrade to Exchange 2007 SP2 especially if they are not down that path already. I would like to clarify that Exchange 2007 SP1 is still a supported platform and will continue to be until the end of it’s lifecycle documented at http://support.microsoft.com/lifecycle/?p1=10926. As long as it is supported, customers running Exchange 2007 SP1 will still receive the same level of support when they call Microsoft Support and also receive critical updates like security related issues as an update rollup for Exchange 2007 SP1.
@Bo, you are correct. The sentence should be "...If the user does not have Exchange _Server_ Administrator permissions". We will fix the blog.