I released version 1.7 of Wall Worm Model Tools today. This version adds some VTA tools (exporting VTA in WWMT if you have the Wunderboy VTA exporter installed and a Morpher/Morph-O-Matic keyframer for preparing model for VTA) as well as a Particle System UI (lets you attach/assign particle systems to model).
Other features and bug fixes as well. See the changelog
for complete details.
Please report any bugs in the WW forums.