LUA Buglight 2.1.1 is was attached to this blog post and replaces v2.1. It adds support for Windows 7 SP1 and Windows Server 2008 R2 SP1. It also fixes a localization bug.
Now that I've (pretty much) finished work on the Windows Sysinternals Administrators Reference, maybe I can find time to write documentation for LUA Buglight! :)
[Update Nov 28 2012: LUA Buglight 2.2 now available.]