Very nice! Thanks for working on releasing this, Akil.
For those interested, this is the pack I used to create the modded drota/goblins in http://forums.elementalgame.com/400551
Two tips: make sure that you work with 32-bit versions of everything - Maya, havok content tools and other programs should all be 32-bit. Also, when choosing a havok content pack, make sure that you get the 7.1 version, NOT the latest version. Note: 7.1 doesn't work with maya2011.
Akil, can I have permission to post the warg skeleton maya file here?
Edit: Here is an excellent skin weight tutorial on youtube. It will make sense when you get there (the mod pack says only to "then adjust skin weights as necessary").