Just a quick update. Yesterday Microsoft reposted the October 2010 Cumulative Updates for SharePoint 2010. For all the information, head on over to the Microsoft SharePoint Team Blog post about the reposting.
I’m a little late in getting this out as I was out of town over the weekend, but just in case you missed it, the October Cumulative Updated for SharePoint Server 2010 has been taken down due to a recently discovered critical issues. For more details see the posts on the Microsoft SharePoint Team Blog.
Initial Announcement – http://blogs.msdn.com/b/sharepoint/archive/2010/11/05/critical-information-about-the-sharepoint-server-2010-october-cumulative-update.aspx
Details and Workaround – http://blogs.msdn.com/b/sharepoint/archive/2010/11/06/details-and-workaround.aspx
Thanks to a co-worker for this blog post – http://msfarmer.blogspot.com/2009/07/sharepoint-versions.html
It lists all of the updates for MOSS and WSS 2007 along with what version number the update is. I’ve had several times when I’ve wanted to know exactly what version number went with which update and was never able to find a comprehensive list (I would always ask this co-worker if he knew 
So, if you aren’t sure if an update fully installed (I’ve had it happen before) or you can’t remember the last update you installed into your farm, head over to the Microsoft Farmer blog and check it out!