Hi Jungman.......there are two good tools that will do this.....
The first you mention is by lurbz, and it can be found here:
http://cursos.usal.es/~felipe/dc/datconvertsrc.zip
The other is the cloning tool by Sansal, and it works very well as a cloner and finding the nodes for hex editing....here is the latest version:
http://24flotilla.gamab.net/pack3d/Pack3D.jar
Happy modding!
-Jeff