Live Communications Server 2005 SP1 resource kit has been updated.
It updates two tools, namely the the Lcsimpac.wsf (Used for importing Exchange Instant Messaging contacts to LCS) and the Lcsarchexport.exe tool.
No news on Vista support for lcsping etc. though (Although soon to be named legacy it is still in use in a few places ,-)
Find the description here and the download here.