A new version of the unpack tool is available at the usual location (
https://dl.dropboxusercontent.com/u/32263228/lstools.zip).
The main new feature is an FBX (3ds max file format) to GR2 (Granny / D:OS model format) export option.
Note that this option wasn't extensively tested; it seems to work, but it may fail to export / incorrectly export files & other stuff.