Finally. Yesterday we republished the TFS 2010 SP1 Cumulative update. You’ll find the download here:
You can read my original article about it to learn more: http://blogs.msdn.com/b/bharry/archive/2011/06/13/tfs-2010-sp1-cumulative-update-1-available.aspx
To refresh your memory, the update was pulled due to two bugs:
1) Installing it on a TFS Proxy server broke the proxy server, requiring uninstall.
2) After installing it on a TFS server, subsequent imports of TFS 2008 servers into TFS 2010 project collections was broken.
Both issues have now been fixed and verified and the update republished. There will be a new KB article published but, like last time, I expect there will be a noticeable lag between the download going live and the KB being published. For now the download points at the original KB article which is accurate except for the two fixes I listed above.